Given :
Angie is testing her science fair project, an erupting model volcano.
In her first trial, she uses 3 drops of red colouring and 5 drops of yellow colouring for the lava.
In her second trial, she uses 4 drops of red colouring and 8 drops of yellow colouring.
To Find :
Which trial had a lower ratio of red colouring to yellow colouring.
Solution :
Ratio at first trial :
[tex]R_1=\dfrac{3}{5}\\\\R_1=0.6[/tex]
Ratio at second trial :
[tex]R_2=\dfrac{4}{8}\\\\R_2=0.5[/tex]
Therefore, second trial had a lower ratio of red colouring to yellow colouring.
Hence, this is the required solution.
Answer:
Step-by-step explanation:
The second trial has lower ratio
An airplane flew for 4 hours at a speed of a miles per hour (mph), and at (x + 10) mph for next 4 hours. What expression can be used to
find the total distance covered by the airplane?
A: 8x
B: 8x+10
C: 8 (x+10)
D: 8x+ 40
Answer:
I think it would be C in my cass
Step-by-step explanation:
Plssssss help meedeeeee
Answer:
C
Step-by-step explanation:
thats the only one that makes sense.
in other words 0.9 + 0.02 = 0.92
Evaluate the expression 12m - 4 if m = 2
Answer:
It's 20
Step-by-step explanation:
-.-
Downloading music costs $0.99 per song, plus a registration fee of $25. Which expression represents the total cost to download x songs?
$25.99x
Step-by-step explanation:
As, for 1 song = $0.99 + $25
So, 1 song = $25.99
So, x song = $25.99 multiplied by x
Which is = $25.99x
So answer = $25.99x
10 bags of chips and 8 soda cans cost $15.
5 bags of chips and 5 soda cans cost $8.
How much does a bag of chips cost? How much does a can of soda cost?
Answer:
One bag of chips costs $1.10
One can of soda costs $0.50
Step-by-step explanation:
1. Create a system of equations (b = bags of chips | s = soda)
10b + 8b = 15
5b + 5s = 8
2. Use the Elimination method by multiplying 5b+5s=8 by -2
10b + 8b = 15
-2(5b + 5s = 8)
=
10b + 8b = 15
- 10b - 10s = -16
(10b and -10b will cancel out, so you will only have s left)
=
-2s = -1
Divide by 2
Soda = 1/2, or $0.50
3. Plug in S (0.50) into an equation above and get B by itself
5b + 5(0.50) = 8
=
5b + 2.5 = 8
- 2.5 -2.5
5b = 5.5
Bag of Chips = $1.10
One gallon is equal to about 3.785 liters. What is this amount rounded to the nearest tenth? To the nearest hundredth? Show your work. ook at problem 3. What is the greatest number of whole liters of water you could pour into a one-gallon container without it overflowing? Explain your answer.
Answer:
3.8 ; 3.79 ; 3
Step-by-step explanation:
Given that:
1 gallon is equal to about 3.785 litres
3.785 to the nearest tenth :
Tenth digit = 7 ; round up 8 to 1 and add to 7
Hence,
3.785 = 3.8 (nearest tenth)
3.785 to the nearest hundredth :
Hundredth digit = 8 ; round up next digit 5 to 1 and add to 8
3.785 = 3.79 ( nearest hundredth)
What is the greatest number of whole liters of water you could pour into a one-gallon container without it overflowing?
The greatest Number of whole liters of water that could be poured into a 1 gallon container without it overflowing is 3 liters because, rounding up 3.785 to the nearest integer of 4 means we will exceed the maximum litres by about 0.215 gallons and hence, cause the container to overflow.
Which word describes the slope of the line?
A. positive
B. negative
C. zero
D. undefined
Please answer this question shown in the picture! Thank you soooo much if you do! ;w;
3×10^-5
Step-by-step explanation:
(3/2)×(1/50000)
3×10^-5
The double number lines show the ratio of cups to gallons. How many cups are in 3 gallons?
Answer:
48 cups
Step-by-step explanation:
There are 16 cups in a gallon.
16 x 3 = 48
Plz help me with this o will give Brainlyest
Answer:
1) 12
2) 106
3) 42
Step-by-step explanation:
Solve using PEMDAS.
Hope this helps. Pls give brainliest.
PLEASSEE HELLP
A. Absolute value
B. Cubic
C. Quadratic
D. exponential
Helpppppppppppppp please someone
Answer:
16
Step-by-step explanation:
7x-5+4x-7+x=180
11x-12+x= 180
12x-12=180
+12 = +12
12x = 192
/ 12 / 12
= 16
Number 1 please !!!!!
Answer: None of these
Step-by-step explanation:
12-4=8
8 feet
Answer: b you got it
A local hamburger shop sold a combined total of 571 hamburgers and cheeseburgers on Tuesday. There were 71 more cheeseburgers sold than hamburgers. How many hamburgers were sold on Tuesday?
Answer:
285 hamburgers and 356 cheeseburgers
Natasha has $1000 to open a checking account. She can maintain a monthly balance of $600. She also has a savings account at the same bank. Her employer offers direct deposit and she plans to use online bill paying. She writes about eight checks per month. She currently uses the ATM machines at several different banks. Natasha sometimes overdraws her account. Bank Account Terms and Conditions Bank Account terms and conditions. Bank A is best for Natasha. Natasha wants an account with the lowest fees. Which checking account would be best for Natasha? Account A Account B Account C Account D
A type of bank account that enables the users to deposit and withdraw money easily for routine transactions is called a checking account. Access to the money for the customers is easy.
Hence, Account A will be the best for Natasha.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Now, The minimum balance for the account is $500 and the rate of interest is 0.2% in the type A account. She has a saving account so the overdraw fee for her will be $0.
The ATM usage fee for account A is $0 and for other account types, the fee is charged as $3 or $2.50 per transaction.
The online bill payment service is free and $100 is required for opening the account the major advantage of this account is that the check-writing is unlimited.
Therefore, Option a. Account A is the best.
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Monica deposits $400 dollars into a savings account that pays a simple interest rate of 3.4% per deposit five dollars into a savings account that pays a simple interest rate of 3.3% Monica says that she will earn more interest in one year because your interest rate is higher.Is she correct? Justify your response
Answer:
Step-by-step explanation:
Given that:
Deposit A:
Principal (p) = $400
Rate (r) = 3.4% = 0.034
Deposit B:
Principal = $5
Rate (r) = 3.3%
Tbe interest earned by the on an account is directly proportional to :
The size of principal amount , the interest rate and the number of years at which the amount is kept in deposit.
From the above ;
Account which earns more interest among the two is deposit A with a higher rate and a larger principal than B.
Answer:
She is incorrect for people that are asking
Step-by-step explanation:
please help!!!!!!!!!!!!!!!!!!!!!!
Answer:
8 1/6
Step-by-step explanation:
Rewriting our equation with parts separated
=4+56+3+13
Solving the whole number parts
4+3=7
Solving the fraction parts
56+13=?
Find the LCD of 5/6 and 1/3 and rewrite to solve with the equivalent fractions.
LCD = 6
56+26=76
Simplifying the fraction part, 7/6,
76=116
Combining the whole and fraction parts
7+1+16=816
Solution by Formulas
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
296+103
Applying the fractions formula for addition,
=(29×3)+(10×6)6×3
=87+6018
=14718
Simplifying 147/18, the answer is
=816
Serenity has 83.2 ounces of candy left over from Halloween. She want to give each of her friends 1.28 ounces of candy. How many friends can Serenity share the Halloween candy with?
Which is the correct label for the angle? (4 points)
Answer:
where is the angle
Step-by-step explanation:
Answer:
what Angle are you talking about because I don't see one?
Step-by-step explanation:
Kelli has a bank balance of 16 dollars. Chad has a bank balance
of -54 dollars. Select three statements that are true about this
situation.
The opposite of Kelli's balance is negative.
The opposite of O is greater than Chad's balance.
The opposite of Chad's balance is negative.
The opposite of Chad's balance is greater than Kelli's
balance.
The opposite of Kelli's balance is greater than the opposite
of Chad's balance.
Answer:
The opposite of Kelli's balance is negative, the opposite of Chad's balance is greater than Kelli's, and the opposite of Kelli's balance is greater than the opposite of Chad's balance.
Step-by-step explanation:
Answer:
The opposite of Kelli's balance is negative, the opposite of Chad's balance is greater than Kelli's, and the opposite of Kelli's balance is greater than the opposite of Chad's balance.
Step-by-step explanation:
The speed a car travels is 60 kilometers per hour, and the distance it travels is 60t kilometers, where t represents the time, in hours, the car travels.
Problem:
What is the distance the car travels if t = 5 hours?
Answer:
300 kilometers
Step-by-step explanation:
I believe this is the answer since you should replace the variable t with the number which in this case is 5 so it would be
60(5) which equals 300
Answer:
300
Step-by-step explanation:
Look at the figure shown below:
P
25
S
12
Patricia is writing statements as shown below to prove that if segment ST is parallel to segment RQ, then x = 35:
Statement
Reason
1. Segment ST is parallel to segment QR. Given
2. Angle QRT is congruent to angle STP. Corresponding angles formed by parallel lines and their transversal are congruent.
3. Angle SPT is congruent to angle QPR. Reflexive property of angles
4. Triangle SPT is similar to triangle QPR. Angle-Angle Similarity Postulate
5.
Corresponding sides of similar triangles are in proportion
Answer:
Option D
Step-by-step explanation:
The equation that can be used as statement 5 to prove that if segment ST is parallel to segment RQ, is:
"28:40 = x:(x+15) that is (Option D)
A mathematical statement is a sentence that is either true or false but is depicted in a mathematical format using mathematical operators.
Note that although mathematical statements are either true or false, they cannot be both.
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5
х
6
7
8
у
— 5
— 6
6
- 7
—8
slope:
:
Answer:
the slope is 1, bc the x is going Up by 1
Step-by-step explanation:
5+1=6
6+1=7
7+1=8
You need
3
33 sticks of butter for every
24
2424 cookies you bake.
Complete the table using equivalent ratios.
Answer:
I think you mean 3, and 24, not 33 and 2424, but the answer is 1:8, 2:16, 3:24, and 4:32.
Step-by-step explanation:
You didn't add a picture, so I cant see the table you need to fill out, but there are some equivalent ratios. Sticks of butter to cookies.
Answer:2 and 40
Step-by-step explanation:
Work out the mean age of a team round your answer to 1 decimal place
Answer:
what kind of team??????
Nelson covered the first 20 miles in 2 1/2 hours. What was his
average speed in miles per hour?
Answer:
= 8 mp /h
Step-by-step explanation:
Average speed=total distance/total time
=20/2.5
=8 mp/h
Answer:8mp/h
Step-by-step explanation:
PLZ HELP d+(−5.004)=2.826
This is from khan academy btw!
what dose d=
Answer:
D=7.83
Step-by-step explanation:
write a equation that is perduliclar to x-3y=3 and passes through the point (5-9).write it in equation slope intersept form
Answer:
The slope of the line is -7/8
When the point (7, –4) is used, the point-slope form of the line is
y+4=(-7/8)(x-7)
The slope-intercept form of the line is y=(-7/8)x+(17/8)
Step-by-step explanation:
Step-by-step explanation:
What is the slope of the line that passes through the points (1, 7) and (10, 1)?
mmo
Which number line shows the solution to the inequality 5x - 15 >-65?
A
rus
-12
-10
-8
B
+
-12
-10
-8
o
-12
-10
-8
D
Monst
-12
-10
-8
AS
Answer:
C
Step-by-step explanation:
when you solve this it is x>10.
< and > is the open hole and x is greater than -10 so it will be going right.
hope this helped :)
The correct number line which shown the solution x > - 10 is shown in Option C.
We have to given that,
An inequality is,
⇒ 5x - 15 > - 65
Now, We can simplify it as,
⇒ 5x - 15 > - 65
Add 15 both side,
⇒ 5x - 15 + 15 > - 65 + 15
⇒ 5x > - 50
⇒ 5x + 50 > 0
⇒ 5 (x + 10) > 0
⇒ x + 10 > 0
⇒ x > - 10
Therefore, The correct number line which shown the solution x > - 10 is shown in Option C.
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