There were 42 people who are fishing if the ratio of people watching whales to people fishing was five to seven.
What is a numerical expression?A numerical expression is algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.
We have been given that the ratio of people watching whales to people fishing was five to seven if there were 72 people.
Let the number of people who watch whales would be 5x
And the number of people who are fishing would be 7x
According to the given condition, the required solution would be as:
⇒ 5x + 7x = 72
⇒ 12x = 72
⇒ x = 6
So the number of people who are fishing = 7 × 6 = 42
Therefore, there were 42 people who are fishing.
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Can someone plz tell me What is 98% of 85
Answer: 83.3
Step-by-step explanation:
0.98 x 85 =83.3
Answer: 83.3 hope this helps.
10-1: Compound Probability
A desk drawer contains 5 red pens, 6 blue pens, 3 black pens, 24 silver paper clips, and 16 white paper clips. If you select a pen and
a paper clip at random, what is the probability that you select a black pen and a white paper clip? Round to the nearest tenth of a
percent
O A. 11.72%
B. 12.12%
C. 9.9%
O D. 8.6%
Answer:
Step-by-step explanation:
Probability of black pens = 3/14
Probability of white paper clips = 16/40
to find the probability of black pen and white paper clip we have to multiply these two probability.
3/14 x 16/40 = 48/560 = 8.6
Please help me to solve this problem of ordered pairs. The value of x and y should be find.
Answer:
x=y=-2
Step-by-step explanation:
Comparing these ordered pairs, we will get
4^(1/x)=1/2 and 9^(1/y)=1/3
x=-2 and y=-2
Answer:
x = y = - 2
Step-by-step explanation:
Using the rule of radicals/ exponents
[tex]a^{\frac{m}{n} }[/tex] = [tex]\sqrt[n]{a^{m} }[/tex] , [tex]a^{-m}[/tex] = [tex]\frac{1}{a^{m} }[/tex] , [tex](a^m)^{n}[/tex] = [tex]a^{mn}[/tex]
Given
[tex]\sqrt[x]{4}[/tex] = [tex]\frac{1}{2}[/tex] , then
[tex]\sqrt[x]{2^{2} }[/tex] = [tex]\frac{1}{2}[/tex]
[tex]2^{\frac{2}{x} }[/tex] = [tex]2^{-1}[/tex]
Since the bases on both sides are equal, both 2 , then equate exponents
[tex]\frac{2}{x}[/tex] = - 1 ( multiply both sides by x )
2 = - x , that is
x = - 2
Similarly
[tex]\sqrt[y]{9}[/tex] = [tex]\frac{1}{3}[/tex] , then
[tex]\sqrt[y]{3^{2} }[/tex] = [tex]\frac{1}{3}[/tex]
[tex]3^{\frac{2}{y} }[/tex] = [tex]3^{-1}[/tex]
Equating the exponents gives
[tex]\frac{2}{y}[/tex] = - 1 ⇒ - y = 2 ⇒ y = - 2
19 cm
Nomkhosi wants to start a vegetable garden. The garden will have a
rectangular shape, and will be 8 m long and 3 m wide. She wants to
put a fence around the garden. On each corner a metal post must be
planted, and along the sides, a thin metal post (a “dropper") must be
inserted every metre. Two posts, similar to the corner posts, must be
planted 1 m apart along one length to allow for a gate. Two horizontal
steel wires will be stretched around the camp, except at the gate.
Chicken wire fencing is to be attached to these two wires.
im
8m + 7m
5m
7 cm
B
f the triangles shown.
horig smal
Lh
1 = 1/2 x 6 x 2h
1m
Triangle B: Area =
- x 19 cm x 7 cm
= 66,5 cm
4) 3 m+ 3m
1 m
3 m
6m
1m
Ichicken-
A
Gate
Corner
post
horizontal
Dropper
Ollowing shapes (to 1 decimal place
1 How many corner posts and gate posts are needed? 6
2 How many droppers are needed?
3 What length of (horizontal) wire is needed?
4 What length of chicken wire fencing is needed?
5 Calculate the cost of the
Answer:
x+5=10 so yeab a dar sopa q no quiere applr a dar algo
2.)You are trying to find the distance AB between two points on either side of a river. You
measure the following distance:
E
D
ED = 32 ft
EC = 32 ft
DC = 28 ft
AC = 28 ft
BC = 32 ft
Answer:
AB = 32 ft
Step-by-step explanation:
If you rotate Triangle ECD 180 degrees clockwise, you will see that the sides line up perfectly with Triangle BCA, meaning that ED = AB and ED = 32 (transitive property of equality) so AB must also equal 32.
Please help me with this I need it
9514 1404 393
Answer:
2/3
Step-by-step explanation:
Let x represent the fraction of Cheryl's income she spent in September. Then 1-x is the fraction she saved.
In October, her spending increased by 0.2x, and her savings decreased by 0.4(1 -x). Since Cheryl spends or saves all of her income, these two change amounts must be equal:
0.2x = 0.4(1 -x)
x = 2(1 -x) . . . . . . multiply by 5 to clear fractions
x = 2 -2x . . . . . . eliminate parentheses
3x = 2 . . . . . . . . add 2x
x = 2/3 . . . . . . divide by 3
Cheryl spent 2/3 of her income in September.
A school store buys pencils in bulk and sells them to students for a small profit. The school pays $2.00 for 100 pencils and sells them for 10 cents each. How many pencils would they have to sell to make a $100 profit?
Answer:
1,000
Step-by-step explanation:
First, there are 10,000 cents in $100.
So divide 10,000 by 10. (because 1 pencil is 10 cents)
1,000.
I hope this helps!
pls ❤ and mark brainliest pls
A car starts from rest. if the velocity of car become 15m/s after 20s calculate the acceleration of the car.
Answer:
[tex]0.75 {ms}^{ - 2} [/tex]
Step-by-step explanation:
[tex]acceleration = \frac{velocity}{time} \\ = \frac{15ms ^{ - 1} }{20s} \\ = \frac{3}{4} ms ^{ - 2} \\ = 0.75 {ms}^{ - 2} [/tex]
[tex]\Large\rm{\underbrace{\green{ \: Acceleration \: = \: \ \frac{v}{t} \: }}}[/tex]
V denotes rate of change in Velocityt denotes time taken[tex] \bf \large \implies \: Acceleration \: = \: \frac{15}{20} \\ [/tex]
[tex]\bf \large \implies \: Acceleration \: = \: \cancel\frac{15 \: \small \: m /s }{20 \: s} \: = \: \frac{3}{4} \: m /s ^{ - 1} \\ [/tex]
[tex]\bf \large \implies \: Acceleration \: = \: \cancel\frac{3}{4} \:m /s ^{ - 1} \: = \: 0.75 \: \: m /s ^{ - 1} \\ [/tex]
[tex] \bf \large \implies \: \: Acceleration \: = \: 0.75 \: \: m /s ^{ - 1} \\ [/tex]
The graph of f(x) = |x| is translated 6 units to the right and 2 units up to form a new function. Which statement about the range of both functions is true?
The range is the same for both functions: {y | y is a real number}.
The range is the same for both functions: {y | y > 0}.
The range changes from {y | y > 0} to {y | y > 2}.
The range changes from {y | y > 0} to {y | y > 6}.
The range is the same for both functions: {y | y is a real number}.
Translation and range of a functionGiven the parent function expressed as f(x) = |x|. If the function is translated 6 units to the right and 2 units up to form a new function, the resulting function will be;
g(x) = |x + 6| + 2
The range is the value of the dependent variable for which it exist. For the given function, the range will exist on all real numbers.
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Write the equation of the sinusoidal function shown?
A) y = cos x + 2
B) y = cos(3x) + 2
C) y = sin x + 2
D) y = sin(3x) + 2
Answer:
günah(3x) + 2
Step-by-step explanation:
Gösterilen sinüzoidal fonksiyonun denklemini yazınız? A) y = cos x + 2 B) y = cos(3x) + 2 C) y = günah x + 2 D) y =
Answer:
y = sin(3x) + 2
what is 8 - [tex]\frac{8}{2}[/tex] + [tex]7^{2}[/tex]
Answer:
53
Step-by-step explanation
8 - 8/2 (this is a fraction) is also known as
8-4 because 8 divided by 2 is 4
so 8-4 = 4
next 4 + 7^2
why is the 2 in the air????
so that's called an exponent, in this case the two means 7 x 7, it is multiplying by itself, thats the essence of exponents. I can do this for exponent 3,4,5,6,7 and so forth. Anyways, 7^2 or 7x7=49
Knowing this its now 4+49= 53
Divide. Write your answer as a fraction in simplest form. −2 4/5÷(−7)=
Answer:
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
.
.
2/5
Answer:
[tex] \frac{2}{5} [/tex]
Step-by-step explanation:
[tex] - 2\frac{4}{5} \div ( - 7)[/tex]
[tex] = \frac{2 \times 5 + 4}{5} [/tex]
[tex] = \frac{10 + 4}{5} [/tex]
[tex] = \frac{14}{5} [/tex]
[tex] = - \frac{14}{5} \times 7[/tex]
[tex] = \frac{14}{5} \div 7[/tex]
[tex] = \frac{2}{5} [/tex]
What are 3 expressions equivalent to 4x-2
Answer:
1 2x-4,x-42,2-4x I hope it will help you please follow me
What is 12x12 inch Square and 3/4 inch pixels?
Which number line represents the solution to the inequality 125x + 200 > 1,200?
9
A Att
-10
-8 -6
-4
--2
0
2
4
6
8
10
B
-10
-8
-6
-4
-2
0
2
4
+ ++
6 8 10
с
AHHH
-10 -8 -6
-4
-2
o
2
4
6
8
10
D
-10
-8
-6
-4
-2 0
2
4
6
8
10
Answer:
see below
Step-by-step explanation:
25x + 200 > 1,200
Subtract 200 from each side
25x + 200-200 > 1,200-200
25x> 1000
Divide by 25
25x/25 >1000/25
x>40
Which of the following is a correct sine ratio for the figure?
A) C = 12∕13
B) C = 5∕12
C) C = 5∕13
D) C = 13∕12
Answer:
sin C= 5/13
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hyp
sin C= 5/13
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
Answer:
Option A, 168 km³
Step-by-step explanation:
Volume of the rectangular prism,
7×4×6
= 168
help meh please I'm bad at math
Answer:
4050 cubic feet
Step-by-step explanation:
We would break this figure down into the square pyramid on the top and the cube on the bottom.
Volume of the cube:
l*w*h
= 15*15*15
= 3375.
Volume of the square pyramid:
a^2*(h/3)
= 15^2*(9/3)
= 225*3
= 675
Now we add the two to get the final answer:
3375+675=4050
The figure is 4050 cubic feet.
I hope this helped! :D
Answer:
Step-by-step explanation:
Cube:
Volume = length x width x height
V = 15 * 15 * 15
(Simplified version): 15³
V = 3,375ft³
Triangle:
Volume = 1/2 * base * height * length
V = 1/2 * 15 * 9 * 15
V = 1,012ft³
Add them both up to get our answer
3,375ft³ + 1,102ft³
4,477ft³
Therefore the volume of the figure is 4,477ft³
2x = 5x - 10 is equivalent to -3x = -10.
True or false
Answer:
True
Step-by-step explanation:
2x = 5x - 10
Subtract 5x from each side
2x-5x = 5x-10-5x
-3x = -10
Answer:
True
Step-by-step explanation:
Given
2x = 5x - 10 ( subtract 5x from both sides )
- 3x = - 10 ← equivalent → True
Please help me solve this question!
[tex](cos^{2} x-sin^{2}x)^{2} -sin4x+sin^{2}2x=0[/tex]
Answer:
x=22.5°
Step-by-step explanation:
(cos²x-sin²x)-sin4x+sin²2x=0
or, (cos2x)²-sin4x+sin²2x=0
or, cos²2x+sin²2x-sin4x=0
or, 1-sin4x=0
or, sin4x=1
or, 4x=90°
or, x=90°/4
or, x=22.5°
Please show your work
[tex]1\frac{2}{3} + 2\frac{3}{4}[/tex]
Answer:
[tex]→1 \frac{2}{3} + 2 \frac{3}{4} \\ = \frac{5}{3} + \frac{11}{4} \\ = \frac{20 + 33}{12} \\ = \frac{53}{12}\\ =\boxed{4\frac{5}{12}}✓[/tex]
53/12 is the right answer.Steps:
1 2/3 + 2 3/4 can also be written as...
5/3 + 11/4
The LCD is 12 so we make both fractions have a denominator of 12.
That gives us 20/12+33/12
Now you can add the numerators (but leave the denominator the same)
That gives us 53/12, but our simplified version would give us 4 5/12 as our final answer.
Answer:
[tex]4\frac{5}{12\\}[/tex]
Please mark brainliest if that helps!
pls help me ASAP !!!!!!!!!
Form the quadratic equation in the form ax^2+bx+c=0 whose solutions are:
a) x=-6,-4
b) x=-12,3
Answer:
x^2+10x+24 and x^2+9x-36
Step-by-step explanation:
A) The quadratic equation is (x+6)(x+4)=x^2+10x+24
B) The quadratic equation is (x+12)(x-3)=x^2+9x-36
help *ASAP!* thank you
Answer:
C2 because 40+40+25 equals 105 not 110
A florist has 18 daisies and 45 carnations. She wants to use all the flowers to create a bouquet to sell. What is the greatest number of bouquets she can make without having any left over?
Find the probability distribution for the following function: P(x)=x/2+1 for x=4,6, and 8
(X-p)(x+q) what is the constant term for the trinomial
Answer:
- pq
Step-by-step explanation:
If we factor (x - p)(x + q)...
x^2 + qx - px - pq
name all sets of number for -15
Answer:
all negative number to -15
what is the equation of the line written in general form?
Answer:
option 2 or y + x -2 = 0
Step-by-step explanation:
Given a line on a graph, it is easiest to start with point-slope form.
y = mx + b
where m is the slope (rise/run) and b is the y-axis intercept.
From the plot m = -2/2 = -1 and b = 2 SO
y = mx + b
y = -x + 2
Then the general form is
y + x -2 = 0
