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2 years ago

11

A long distance calling plan charges 99 cents per minute for any call not exceeding 20 minutes in length and 7 cents for each ad

ditional minute. Determine how much a call lasting 23, 36, and 58 minutes would cost.

1 answer:

Ivanshal [37]2 years ago

3 0

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When bicycles are sold for $200 each, a sports shop can sell 90 bicycles in a season. For every $10 increase

77julia77 [94]

Maybe try add it then takeaway most of it

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3 years ago

Which function is the inverse of f(x) = -5x- 4?

almond37 [142]

Answer:

Inverse of $- 5 x - 4 =$ $\frac{x + 4}{5}$

Step-by-step explanation:

Let y = -5x-4

Swap y and x

x = -5y -4

Solve for y

x+4 = -5y

$y=- \frac{x + 4}{5}$ which is the inverse

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1 year ago

What multiplies together to get 10 but adds together to get -11

sveticcg [70]

-10 and -1 multiply to get 10 and add to get -11

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3 years ago

Read 2 more answers

What is the constant of proportional

Bond [772]

Answer:

The constant value (often written k) relating amounts that rise or fall uniformly together. It is the ratio of the amounts y and x: k = y/x. Put another way: y = kx.

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3 years ago

a tree casts a shadow 8 feet long. A 6-foot Man cast a shadow 4 feet long. The triangle formed by the tree and its shadow is sim

Elden [556K]

Answer:

12 feet

Step-by-step explanation:

Draw a diagram (see picture below). The tree and its shadow is one triangle, the man and its shadow is another triangle. We assume both are right triangles because people and trees stand vertical.

Create a proportion to solve. Put the missing value in a numerator.

Tree height / Tree shadow = Man height / Man shadow

$\frac{x}{8} =\frac{6}{4}$

Solve using cross multiplication. Multiply x by 4. Multiply 6 by 8.

4x = 48 Divide both sides by 4 to isolate x.

x = 12 Height of tree

The tree is 12 feet tall.

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3 years ago