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postnew [5]
3 years ago
11

Find -7 -(-3)= What’s the answer explain !

Mathematics
2 answers:
Olegator [25]3 years ago
6 0

Because there are 2 minus signs next to each other, we can replace both of them with a single plus sign.

This changes the equation to -7 + 3

Adding to a negative number makes the number appear smaller, so 3 + -7 = -4.

Ierofanga [76]3 years ago
6 0

Remove parenthesis

-7=3

Calculate the sum

-4

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50 points and brainleist
Margaret [11]
<h3>y = 500(1.12) is the equation could be used to find the new value</h3><h3>The new value is 560</h3>

<em><u>Solution:</u></em>

Given that,

A value of 500 increases by 12%

To find: equation could be used to find the new value

Therefore,

Initial value = 500

Increase rate = 12 %

Let "y" be the new value

Thus the equation is:

new value = Initial value + 12 % of Initial value

y = 500 + 12 \% \text{ of } 500\\\\y = 500 + 12 \% \times 500\\\\y = 500(1 + 12 \%)\\\\y = 500(1 + \frac{12}{100})\\\\y = 500( 1 + 0.12)\\\\y = 500(1.12)

Thus the equation is found. Option B is correct

Solve it

y = 500 \times 1.12\\\\y = 560

Thus the new value is 560

5 0
3 years ago
The weights of a breed of dog are normally distributed with mean 22 lbs and standard deviation 1.6 lbs. Out of randomly selected
ser-zykov [4K]

Answer: C or

41*67/2=1373.5

Step-by-step explanation:

Hi

5 0
3 years ago
Sandra used her debit card to buy lunch for $8.74 on Monday. On Tuesday, she deposited $8.74 back into her account. What is the
Nastasia [14]
-8.74 + 8.74 = 0....there is a 0 increase/decrease in her account
5 0
3 years ago
Read 2 more answers
Solving and Simplifying Equations <br> 5r = -3(r +3) +7
Ray Of Light [21]

Answer:

-2/8

Step-by-step explanation:

-3r-9+7=5r

-2=5r+3r

r=-2/8

hope this helped you( ꈍᴗꈍ)

6 0
3 years ago
Read 2 more answers
Janie's Boutique had a sale in which sweaters were marked 25% off. If Bridget paid $19.08 for asweater (after a 6% sales tax was
Aleksandr [31]

Answer:

$25.28

Step-by-step explanation:

19.08 * 0.06 = 1.1448

1.1448 + $19.08 = 20.2248

20.2248 * 1.25 = 25.28


Hope this helps! Please mark brainliest. Have a great day!

8 0
3 years ago
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