What is -7+(-2)? I got nine but I'm not sure if that's correct.

2 answers:

8 0

It's actually (-9)... think of it as a hot air balloon, the positivies being balloons and the negatives being sandbags or weights.
You have 7 sandbags/weights and add 9 more sandbags/weights, causing u to go lower, therefore, *negative* 9
Hope that helped! :))

Pavel [41]3 years ago

6 0

-9
If you look at a number line, then if you put your finger on negative 2 and subtract 7, then you will land on -9. Also the equation is the same as -7-2 which equals -9

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erika estimates that she is 200 to 300 miles away from her destination. if her car travels 25 miles per gallon of gas and each g

DedPeter [7]

Answer:

32$ < x < 48$

Step-by-step explanation:

Erika estimates that her destination is between 200 and 300 miles away.

When we divide 200 with 25 miles we get 200/25 = 8 gallons

When we divide 300 with 25 miles we get 300/25 = 12 gallons

When we multiply 8 · 4 = 32$ we get amount of money for destination

200 miles x = 32$

When we multiply 12 · 4 = 48$ we get amount of money for destination

300 miles x = 32$

Since that the estimate destination is between 200 miles and 300 miles

then the best estimate for the amount of money is between

32$ < x < 48$

God with you!!!

7 0

3 years ago

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Masja [62]

Answer: $\frac{x-4}{2x-2}$

Step-by-step explanation:

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