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liq [111]
3 years ago
7

Evaluate the following expression. −8 × (−10) −7× 1/−1

Mathematics
1 answer:
GaryK [48]3 years ago
3 0

Answer:

<h2>87</h2>

Step-by-step explanation:

-8\left(-10\right)-7 \times \frac{1}{-1}=87\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=8\times \:10-7\times \frac{1}{-1}\\\\8\times \:10=80\\\\7\times \frac{1}{-1}=-7\\\\=80-\left(-7\right)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=80+7\\\\=87

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WILL GIVE BRAINLIEST!!! PLEASE HELP!
vovikov84 [41]

Hey there!!

Let's take the first number an the smallest number as ' x '

Then, the second consecutive even integer would become ' x + 2 '

Third integer ' x + 4 '

Hence, adding them up, we get,

x + x + 2 + x + 4

... 3x + 6

This is equal to 4 times the smallest number.

We got the smallest number as ' x '

Hence, the final equation :

... 3x + 6 = 4x

Hope my answer helps!!

3 0
3 years ago
A snack stand sells bottles of water for $1.35 each . Sam needs to buy as many bottles as he can. He can spend no more than $20.
Nady [450]

Answer: 1.1

Step-by-step explanation:

If Sam buys 14 water bottles, he will have spent 18.9, so when you subtract 20 (the limit) from 18.9 (how much money he'll spend on the water bottles) you get 1.1

4 0
3 years ago
Witch of the following equations could be used to solve the problem? x2+2=36 2x+2=36 2x=36 2x+1=36
Tomtit [17]

Answer:

There is no problem stated, but here is the x's for every equations provided:

Step-by-step explanation:

a.) x²+2=36

x²=34

x=√34

b.) 2x + 2 =36

2x= 34

x= 17

c.)2x=36

x= 18

d.) 2x+1=36

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6 0
3 years ago
89.517 +59.84 by first rounding each number to the nearest whole number.
Nataliya [291]

Answer:

150

Step-by-step explanation:

89.517=90. 59.84=60 90+60=150

4 0
3 years ago
Read 2 more answers
50 points, question is below.
REY [17]

x^2+3x-10\neq0\\\\x^2+5x-2x-10neq0\\\\x(x-5)-2(x+5)\neq0\\\\(x+5)(x-2)\neq0\to x+5\neq0\ \wedge\ x-2\neq0\\\\x\neq-5\ \wedge\ x\neq2\\\\\dfrac{x+5}{x^2+3x-10}=\dfrac{x+5}{(x+5)(x-2)}=\dfrac{1}{x-2}\\\\Answer:\ x=2

8 0
3 years ago
Read 2 more answers
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