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3 years ago

Solve for r: -10<5(r+4)

Mathematics

1 answer:

ivann1987 [24]3 years ago

5 0

Answer:

r>-6

(please mark as brainliest, i need it to get to next lvl <3 )

Step-by-step explanation:

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A plane flies from San Francisco to New York City at 600 miles per hour and returns along the same route at 400 miles per hour.

ozzi

Answer: 500 i think

Step-by-step explanation:

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3 years ago

For a science experiment, Claudia observes the effects of temperature on a substance. The original temperature is 9°C, and Claud

aliya0001 [1]

Answer:

The drop in temperature is 42-(-54)=42+54=96℉. Rate of drop is 12℉. So it will take 96/12=8 hours.

Another way: -54-42=-96, -96/-12=8 hours.

Step-by-step explanation:

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3 years ago

Consider the function f(x)=4x-5. what is the domain value that corresponds to an output of f(x)=11?

erastovalidia [21]

F = 4

if f(x)=11, you must always try and get x alone, so f = (11+5)/4, and this simplifies to 4.

8 0

3 years ago

What is the hcf of 20 and 25

fomenos

The answer is 5. The only factors are 1 and 5, and 5 is the highest.

6 0

3 years ago

Read 2 more answers

Mary used Delicious (d) and Golden Delicious (g) apples to make homemade applesauce. Delicious apples are $0.75 each and Golden

alina1380 [7]

Answer:

Mary bought 9 Golden Delicious apples

Step-by-step explanation:

This can be solved by setting up a system of equations. Based on the information given, the equations would be set up as follows.

$.75d+1.25g=21.00\\d+g=22$

I prefer to solve using substitution, but elimination can be used as well

$.75d+1.25g=21.00\\g=22-d$

We can now plug in this g value to the first equation

$.75d + 1.25 (22-d)=21.00\\.75d + 27.5-1.25d=21\\27.5-0.5d=21\\-.5d=-6.5\\d=13$

This means mary bought 13 delicious apples. She bought 22 apples in total, so the total number minus the amount of delicious apples will give us the amount of golden delicious apples.

22 - 13 = g

9 = g

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3 0

3 years ago