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Stolb23 [73]
3 years ago
11

Please help me asap​

Mathematics
2 answers:
kotegsom [21]3 years ago
6 0

Answer:

-.51

-1/2

.42

11/20

omeli [17]3 years ago
3 0

Answer:

-.51, .1/2, .42, 11/20

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Which expression is equivalent to -5(2x – 10)?<br> Help ples
ArbitrLikvidat [17]
The answer is c.

-5(2x-10)=
Distribute
-10x+50

-10(x-5)= -10x+50
5 0
3 years ago
Jackson had $25 to spend on groceries . After purchasing 5 cantaloupes he had $2.50 left how much did each cantaloupe cost
charle [14.2K]
Since the price of the cantaloupes is unknown, it will have to represented by a variable. Let's use x.
If Jackson starts with $25 and buys 5 cantaloupes of an unknown price, this subtracts 5 times the amount of 1 cantaloupe (which is x) from that $25.
This is shown as 25 - 5x.
After spending that money, he has $2.50 left over.
This means 25 - 5x = 2.50.
Now you just need to solve this by first isolating the variable.
First, subtract 25 from both sides.
25 - 5x - 25 = -5x
2.50 - 25 = -22.5
Then, divide both sides by -5. It's -5 since 5 is the coefficient and it's negative, so -5.
-5x / -5 = x
-22.5 / -5 = 4.5
This means x = 4.5.
And if x is 4.5, then that means the cost of 1 cantaloupe is $4.50.
3 0
4 years ago
Sandy's car can travel 42 miles on 1 1/6 gallons of gas. At that rate, how many miles per gallon does her car get?
V125BC [204]
We simply have to divide the total miles that the car can travel by the total amount of gallons of gas.
So,
42 miles/ (11/6 gallons) = 22.91 miles per gallon

Therefore, Sandy's car gets 22.91 miles per gallon of gas
4 0
3 years ago
Need help on problem 40 part b for integrating in respect to y! Thanks!
igomit [66]

Answer:   \bold{(a)\quad \dfrac{32}{3}\qquad (b)\quad \dfrac{32}{3}}

<u>Step-by-step explanation:</u>

(a) First, find the x-coordinates where the two equations cross

                            y = -1    and   y = 3 - x²

  -1 = 3 - x²

 -4 =     -x²

  4 =       x²

± 2 =       x       → These are the upper and lower limits of your integral

Then subtract the two equations and integrate with upper bound of x = 2 and lower bound of x = -2

<u />

\int_{-2}^{+2}[(3-x^2)-(-1)]dx\\\\\\=\int_{-2}^2(4-x^2)dx\\\\\\=4x-\dfrac{x^3}{3}\bigg|_{-2}^{+2}\\\\\\=\bigg(8-\dfrac{8}{3}\bigg)-\bigg(-8+\dfrac{8}{3}\bigg)\\\\\\=\large\boxed{\dfrac{32}{3}}

(b) We know the upper and lower bounds of the y-axis as y = 3 and y = -1

Next, find the equation that we need to integrate by solving for x.

      y = 3 - x²

x² + y = 3

x²       = 3 - y

x         =\pm\sqrt{3-y}\\

\rightarrow \qquad x=\sqrt{3-y}\quad and \quad x=-\sqrt{3-y}

Now, subtract the two equations and integrate with upper bound of y = 3 and lower bound of y = -1

\int_{-1}^{+3}[(\sqrt{3-y})-(-\sqrt{3-y})]dy\\\\\\=\int_{-1}^{+3}(2\sqrt{3-y})dy\\\\\\=\dfrac{-4\sqrt{(3-y)^3}}{3}\bigg|_{-1}^{+3}\\\\\\=\bigg(0\bigg)-\bigg(-\dfrac{32}{3}\bigg)\\\\\\=\large\boxed{\dfrac{32}{3}}

8 0
4 years ago
Billy has a gift card with a 150 balance he buys several video games that cost $35 each after the purchase his gift card balance
kow [346]

Answer:

150=45-35x

answer is 3

Step-by-step explanation:

we start off with $150, which is the total amount

$35 is x, cost of each game

$45 is what is remaining,

first you subtract 45 from both sides,

then you divide both sides by 35 which will get the answer 3

8 0
3 years ago
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