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Katarina [22]
3 years ago
15

NEED HELP THIS IS TIMED WILL MARK BRAINIEST!!!

Mathematics
1 answer:
Anastasy [175]3 years ago
6 0

Answer:

It’s A hope this is right good luck

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Angela paints a wall that has an area of 42 2/3 square yards. She uses 1 1/3 gallons of paint. What is Angela's rate of paint co
Rina8888 [55]
Yards= 42  2/3 yd=42 + 2/3 yd=(42*3 + 2)/3 yd=128/3 yd
Gallons=1  1/3 Gallons=1+1/3 gallons=(3*1+1)/3 gallons=4/3 gallons.

Rate=number of yards / number of gallons.
Rate=(128/3 yd) / (4/3 gallons)=32 yd/gallon.

Answer: Angela´s rate=32 yards / gallons
8 0
3 years ago
System with 3 variable. solve pleaseeee<br><br> x+4y-5z=-7<br> 3x+2y+3z=7<br> 2x+y+5z=8
7nadin3 [17]
To solve this we need to form 2 equations with only 2 variables.
x+4y-5z=-7
2x+y+5z=8
3x+5y=1

15x+10y+15z=35
6x+3y+15z=24
9x+7y=11

Now we need to use these to find x and y
9x+15y=3
9x+7y=11
8y=-8
y=-1
Therefore:
x=2
From this we can find that:
2(2)-1+5z=8
Therefore z=1
The answer is x=2, y=-1, z=1
6 0
3 years ago
Solve for x: 3(x+1)=5(x-2)+7
mojhsa [17]

Answer:

x = 3

Step-by-step explanation:

3 ( x + 1 ) = 5 ( x- 2 ) + 7

Expand

3 x + 3 = 5 x  - 10 + 7

Minus 5 x from both sides

- 2 x + 3 = - 10 + 7

Minus 3 from both sides

- 2 x = - 10 + 4

Simplify

- 2 x = - 6

Divide both sides by - 2

x = 3

7 0
3 years ago
I literally don't understand this at all.
Rzqust [24]

Answer:

its just exaplining how does this exrcise work example 1^1 would be 1x1/

1^3          1x1x1x1/      3^5       3x3x3x3x3/     3x3=9 9x3 =27 27x3 =81    81x3=243

Step-by-step explanation:

6 0
3 years ago
The sum of two consecutive odd integers is 112. find the integers
Alchen [17]

55 and 57

Let the first number be n

n

+

(

n

+

2

)

=

112

simplifies to

2

n

=

110

divide by two

n

=

55

and

(

n

+

2

)

=

57

plz mark me as brillant

8 0
3 years ago
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