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kiruha [24]
4 years ago
14

Simplify: 7·(a+5)–30 =

Mathematics
1 answer:
postnew [5]4 years ago
7 0

Answer:

7a + 5

Step-by-step explanation:

Distribute using PEMDAS.


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Larry was born on June 7, 1962. His little sister was born thirteen years and three days later. When was his sister born?
Viefleur [7K]

Answer:

The answer is B

Step-by-step explanation:

2021 - 1962 =59

59-13=46

2021-46=1975

Then 7+3=10

3 0
3 years ago
Although, in general, you cannot know the sampling distribution of the sample mean exactly, by what distribution can you often a
Vitek1552 [10]

Answer:

b: Normal Distribution

Step-by-step explanation:

4 0
4 years ago
a floor is 450 ft by 90 ft. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. what are the dimensions of
Minchanka [31]
450/5= 90 units

90/5= 18 units

All you need to do is divide the real dimensions by the scale dimensions, and turn that answer to units. Notice: It said 1 unit: 5 feet

The scale drawing was 90 to 18 units.

I hope this helps!
~kaikers
8 0
3 years ago
Solve the system of equation by elimination.<br> 27= -3y + x<br> 2 y=10 - 4x
rodikova [14]

Answer:

x=6 y=-7

Step-by-step explanation:

rearrange the equation

3y=x-27 eq 1

2y=-4x+10 eq 2

Multiply eq 1 by 2, and eq 2 by 3

6y=2x-54

6y=-12x+30 subtract the two eq's

0=14x-84

84=14x

x=84÷14

<u>x=6</u>

solving for y sub. x either eq 1 or 2

3y=x-27

3y=6-27

3y=-21

y=-21÷3

<u>y=-7</u>

8 0
3 years ago
Help please! :(
Mekhanik [1.2K]

Answer:

5.51 meters

Step-by-step explanation:

3 0
3 years ago
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