Answer:
Will you be my friend? please answer
Step-by-step explanation:
what do you need to find ?
the number of pizzas and calzones they were eating ?
if so :
p = number of pizzas
c = number of calzones
3p + 2c = 18
2p + 5c = 23
let's multiply the first equation by 2 and the second squadron by 3, and then subtract the second from the first :
6p + 4c = 36
- 6p + 15c = 69
-------------------------
0 -11c = - 33
c = 3
2p + 5c = 23
2p + 5×3 = 23
2p + 15 = 23
2p = 8
p = 4
so, they were eating 4 pizzas and 3 calzones.
What is the value of y rounded to the nearest 10th
Answer:
8/13
Step-by-step explanation:
I think am not sure...
Answer:
y ≈ 46.2
Step-by-step explanation:
using the law of sines , then
[tex]\frac{y}{sin85}[/tex] = [tex]\frac{31}{sin42}[/tex] ( cross- multiply )
y × sin42° = 31 × sin85° ( divide both sides by sin42° )
y = [tex]\frac{31sin85}{sin42}[/tex] ≈ 46.2 ( to the nearest tenth )
Find the derivative of f(x) = 7x + 9 at x = 6. (6 points)
HELLPP 50 points!! its due soon!!!!!
Lusia wants to buy sulu. If she buys 7 meters,She is 1 dollar short. If she buys 5 meters, 5 dollar is left over . How much does she have ?
Answer:
$20
Step-by-step explanation:
let 1 meter of sulu = s, lusia has m dollar
7s = m + 1 => m = 7s - 1
5s = m - 5
5s = 7s - 1 - 5
2s = 6
s = 3
m = 7s - 1 = 21 - 1 = 20
A straight highway is 100 miles long and each mile is marked by a mile post numbered from 0-100. A rest area is going to be built along the highway exactly 6 miles away from a milepost 57. If m is the milepost number of the rest area which of the following equations represents the possible locations for the rest area
Answer:
maybe this will help, but the rest area will be at mile marker 51
pls answer asap, thanks!!! (will mark brainliest)
Step-by-step explanation:
s = top speed
p = horsepower
s = 27.3 × p^(1/6)
the exponent 1/6 means the 6th root of p.
17.
s = 27.3 × 70^(1/6) = 27.3 × 2.030094899... =
= 55.42159075... knots
18.
50 = 27.3 × p^(1/6)
50⁶ = 27.3⁶ × p
p = 50⁶/27.3⁶ = (50/27.3)⁶ = (1.831501832...)⁶ =
= 37.74367151... horsepower
SOLVE ALL THESE EQUATION BY USING THE METHOD SUBSTITUTION ALGEBRAICALLY HERE'S ARE ALL THE EQUATION:
1. -7x - y = - 1/ y = 8x= 16
2. 3x +4y =0/ y=-3x -18
3. y = 3x/ -5x -2y = - 11
4. -8x -7y =0/ y = 6x
8. 2x- 6y = -14/ y=-5x -19
Answer:
See below ~
Step-by-step explanation:
Question 1
-7x - y = -1y = 8x + 16⇒ -7x - (8x + 16) = -1
⇒ -7x - 8x - 16 = -1
⇒ -15x = 15
⇒ x = -1
⇒ y = 8(-1) + 16 = 8
⇒ Solution = (-1, 8)
Question 2
3x + 4y = 0y = -3x - 18⇒ 3x + 4(-3x - 18) = 0
⇒ 3x - 12x - 72 = 0
⇒ -9x = 72
⇒ x = -8
⇒ y = -3(-8) - 18 = 6
⇒ Solution = (-8, 6)
Question 3 (not clear)
Question 4
-8x - 7y = 0y = 6x⇒ -8x - 7(6x) = 0
⇒ -8x - 42x = 0
⇒ -50x = 0
⇒ x = 0
⇒ y = 6(0) = 0
⇒ Solution = (0, 0)
Question 8
2x - 6y = -14y = -5x - 19⇒ 2x - 6(-5x - 19) = -14
⇒ 2x + 30x + 114 = -14
⇒ 32x = -128
⇒ x = -4
⇒ y = -5(-4) - 19 = 1
⇒ Solution = (-4, 1)
(1.50b+ 2.95m+ 1.55p)-0.20(1.50b + 2.95m + 1.55p)
Answer:
When you simplify the equation you have to combine like terms.
Here is what i got
If this was what your looking for i dont mind brainlest
answer both and you get tons
Answer:
Read the explanation Hope it helps!
Step-by-step explanation:
PART 1
13.5% is 13.5
3.9*0.01=0.039
3 3/5=3.6
1.35
3.9
[tex]3.9*10^{-2} \\13.5%\\[/tex]
1.35
[tex]3 \frac{3}{5}[/tex]
3.9
PART 2
The least value would be 6.25*10^-3
There are 10 players on the swim team. How many ways can the coach select 3 people to swim in the relay?
A. 1,080
B. 960
C. 720
D. 120
Answer:
C. 720
Step-by-step explanation:
10 - 3 is 8 so you multiply all the numbers from 10 through 8
10 * 9 * 8 = 720
That is the answer. Hope it helped!
Answer:
C: 720
Step-by-step explanation:
i got 100% on the quiz
help asap check picture
Helppppppppp I’m struggling
Answer:
ok what must you do
Step-by-step explanation:
PLEASE HELP ME MI AMOR
Answer:
Well for 1 question it would be a 25% chance but since its two i would say its a 50% chance
Step-by-step explanation:
Given →u = (-7, 1/2) and →w = (2, 3/4), Find 2u→ +4w→
A. (-6, 1 1/2)
B. (-24, 3 1/2)
C. (-5, 1 1/4
D. (-6, 4)
A bag contains 6 white marbles and 4 black
marbles. A marble is drawn from the bag
and then a second marble is drawn without
replacing the first one.
What is the probability of drawing a white
marble on the first draw, followed by a black
marble on the second?
Answer:
4/15
Step-by-step explanation:
P(drawing white marble and black marble)
= 6/10 × 4/9 [9 as there is no replacement]
= 4/15
Lin solved a quadratic equation by factoring and found one solution to be x = 3/4. Which of the following expressions could have been one of her factors?
Answer: 4x-3
Step-by-step explanation: When subsituted, the equation should equal 0
what is 7 + (-5) + (-3)
Answer:
-1
Step-by-step explanation:
7+(-5)+(-3)
7-5-3
7-8
=-1
Answer:
the answer is -1
Step-by-step explanation:
simple:
7+(-5)
= +2 ( seven has the higher absolute value, so we go with positive)
+2 + (-3)
= -1 (we go with the negative this time because -3 has the higher absolute value)
(answer is above)
Write 460,000,000 as a power of ten.
Answer:
460 million = 4.6 x 10^8
Step-by-step explanation:
Is y=2^x linear, exponential or neither
show 2/5 65 and 3/8 on the number line below
You start at (8, 3). You move right 1 unit and down 3 units. Where do you end?
Answer:
(9,0)
Step-by-step explanation:
8 + 1 = 9
3 - 3 = 0
(9,0)
An opened a sevings account with $300 and was paid simple interest at an annual rate of 5%. When Ann closed the account, she
was paid 75 in interest. How long was the account open for, in years?
Answer:
it would have took 15 years
What is the area of the shaded region?
Answer:
461.81
Step-by-step explanation:
your welcome
Which sum or difference is modeled by the algebra tiles?
Answer: I believe the answer is D.
Step-by-step explanation:
A family of four four spent $75 to go to the movie theater 10% of the total was spent on drinks they bought two tubs of popcorn for $6.75 each the rest of the money was spent on movie tickets what was the price per ticket
just use your in built calculator
o 0 If a triangle has angle measurements of 60 and 70°, what is the measure of the third angle? What kind of triangle is this? Acute, Right, or Obtuse? Explain how you solve this problem.
Answer:
→ 50°
→ Acute triangle
Step-by-step explanation:
the measure of the third angle = 180 - (60 + 70) = 180 - 130 = 50°
definitions=======================================
Acute angle : it’s an angle that measures less than 90°.
Acute triangle: it’s a triangle with three acute angles.
………………………………………………………………………………………………
The measures of the angles in our triangle are respectively 60° , 70° , 50°
Thus ,it’s an acute triangle .
Jackson cut a pentagon out of poster board to make sign for his door. The perimeter of the sign is 30 inches and each side of the sign has the same length. What is the length of each side of the sign?
Answer:
6 inches
Step-by-step explanation:
If the perimeter of the whole pentagonal sign is 30 inches, each side must be 6 inches. Why? A pentagon has 5 sides, and each side is equivalent. 30/5=6.
Would appreciate if you marked my answer as brainliest, have a good day :)
AYUDA LA NECESITO RAPIDO AHHHH
Answer:
y=7(3)= 21
y=7(8)= 56
y=7(10)= 70
Step-by-step explanation:
Answer:
X Y
3 21
8 56
10 70
Step-by-step explanation:
Find Y by plugging in each X value to the given function.
Encuentre Y reemplazando cada valor de X en la función dada.
When x = 3 : y = 7 * 3 = 21
Cuando x = 3 : y = 7 * 3 = 21
When x = 8 : y = 7 * 8 = 56
Cuando x = 8 : y = 7 * 8 = 56
When x = 10 : y = 7 * 10 = 70
Cuando x = 10 : y = 7 * 10 = 70
A hotel builds an isosceles trapezoidal pool for children. it orders a tarp to cover the pool when not in use. what is the area of the tarp?
to find the height. first find that d is 60,45,or 120. this means the height of the trapezoid is approximately 2.5,4.3,or 3.5 feet. so the area of the tarp is approximately 47.3,30.0 or 38.5 square feet.
The area of the trapezoidal tarp in the hotel is 47.3 square inches
How to determine the area of the tarp?The area of a trapezoid is calculated using:
Area = 0.5 * (Sum of parallel sides) * Height
From the complete question, the parallel sides are:
10 ft and 12 ft
So, we have:
Area = 0.5 * (10 + 12) * h
Evaluate
Area = 11 * h
The height (h) is calculated using the following cosine function
cos(120 - 90) = h/5
This gives
cos(30) = h/5
Make h the subject
h = 5cos(30)
Evaluate
h = 4.3
So, we have:
Area = 11 * 4.3
Evaluate
Area = 47.3
Hence, the area of the trapezoid is 47.3 square inches
Read more about areas at:
https://brainly.com/question/24487155
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Answer: To find the height, first find that <D is 120.
This means the height of the trapezoid is approximately 4.3 feet.
So, the area of the tarp is approximately 47.3 square feet.
Step-by-step explanation: correct on edmentum/plato
Consider this system of equations.
p=2np=2np=2n
p−5=1.5np−5=1.5np−5=1.5n
What value of nnn makes the system of equations true?
The values of n and p which makes the system of equations true are 10 and 20 respectively.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have system of equation:
p=2n and
p−5=1.5n
Put p = 2n in the other equation.
2n - 5 = 1.5n
2n = 1.5n +5 (add 5 on both sides)
0.5n = 5 (subtract 1.5n on both sides)
n = 10 (divide by 0.5 on both sides)
Put n = 10 in the equation p = 2n
p = 2(10) = 20
Thus, the values of n and p which makes the system of equations true are 10 and 20 respectively.
Learn more about the linear equation here:
brainly.com/question/11897796
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