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stellarik [79]
2 years ago
7

The sum of a certain number and -3.4 is -8.1 find the number​

Mathematics
2 answers:
pentagon [3]2 years ago
6 0

Answer:

-4.7

Step-by-step explanation:

-8.1 + -3.4 = -4.7

This works because - and + are inverse operations, so you can use + to help find a - problem or see if it's correct, or vise versa.

alexira [117]2 years ago
5 0

Answer:

4.7

Step-by-step explanation:

If you use the rules of the signs to eliminate the minuses and then substract 8.1 from 3.4 you get 4.7 which, if you sum it with 3.4 gives 8.1

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two boxes of identical birthday candles are pictured: a 2 ounces box and 6- ounces box. There is 96 candles in the large box. Ho
Sladkaya [172]

Answer:  There are 32 candles in the small box.

Step-by-step explanation:

Since we have given that

Size of small box= 2 ounces

Size of large box = 6 ounces

Number of candles in large box = 96,

We need to find the number of candles in the small box ,

As there is direct variation between the small box and large box ,

let the number of candles in the small box be x

So,

\frac{96}{6}=\frac{x}{2}\\\\16=\frac{x}{2}\\\\16\times 2=x\\\\32=x

so, there are 32 candles in the small box.

7 0
3 years ago
What is the slope of a line that passes through (–4,–13) and (19,11)?
Anna11 [10]
For points (x1,y1) and (x2,y2)
slope=(y1-y2)/(x1-x2)

(-4,-13)
(19,11)
x1=-4
y1=-13
x2=19
y2=11

slope=(-13-11)/(-4-19)=-24/-23=24/23
B is answer
5 0
3 years ago
Read 2 more answers
Which postulate or theorem proves that these two triangles are
Aleksandr-060686 [28]

Answer: O AAS Congruence Theorem is your answer

Step-by-step explanation:   plz give brainliest

4 0
2 years ago
Abes apples orchard plants both green apple trees and red apple trees this planting will include 21 red apple trees and 18 green
Xelga [282]

Answer:

The ratio of green apples to red apples is .

Step-by-step explanation:

Given,

Number of red apples = 21

Number of green apples = 18

We have to find out the ratio of green apples to red apples.

Solution,

For finding the ratio we have to divide the number of green apples to the number of red apples.

So, we can frame the above sentence as;

Ratio = number of green apples/number of red apples

Now substituting the values, we get;

Ratio= 18/21 = 6/7

Hence The ratio of green apples to red apples is . 6/7

4 0
2 years ago
The length of a rectangle is 5 more than the side of a square, and the width of the rectangle is 5 less than the side of the squ
ANEK [815]

Answer:

20

Step-by-step explanation:

Given :

Length = l

Width = w

Area of square = 45

Let side of square = x

Area of square = x²

45 = x²

√45 = x

l of rectangle = x + 5 = √45 + 5

w of rectangle = x -5 = √45 -5

Area of rectangle= l * w

Area = (√45 + 5) * (√45 - 5)

Area = 45 - 5√45 + 5√45 -25

Area = 45 -25

Area of rectangle = 20

6 0
2 years ago
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