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djverab [1.8K]
3 years ago
14

Does anyone know how to do this Or how to calculate this I already have apps like photomath so don't even suggest that

Mathematics
1 answer:
jeka943 years ago
6 0

I'm not sure what the answers you have mean. sorry! I've solved the problem, though, if that helps at all.

4x + 10y = 57

2x + 5y = 38

5y = 38-2x

y = (38-2x)/5

4x + 10((38-2x)/5) = 57

4x + 2(38-2x) = 57

4x + 76 - 4x = 57

0x + 76 = 57

the answer is no solution because 76 \neq 57

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Talia used 1/3 of a piece of wood for the base of her project 1/4 of the piece of wood for the vertical support and the rest for
Veseljchak [2.6K]

Answer:

The fraction of wood used for horizontal support is \frac{5}{12}.

Step-by-step explanation:

Assume that the total piece of wood is of length 1.

It is provided that Talia used \frac{1}{3} of the piece of wood for the base of he project.

She use \frac{1}{4} of the piece of wood for the for the vertical support.

The remaining wood she used for horizontal support.

The amount of wood used for horizontal support can be computed by the subtracting the amount of wood used for base of the project and vertical support form 1.

Compute the amount of wood used for horizontal support as follows:

Horizontal\ support=1-Base\ of\ project-Vertical\ support\\= 1 - \frac{1}{3}-\frac{1}{4}\\  =\frac{12-4-3}{12} \\=\frac{5}{12}

Thus, the fraction of wood used for horizontal support is \frac{5}{12}.

3 0
3 years ago
Need help plz..........
boyakko [2]
Subtraction property of equality
2/3y = -6
2/3y × 3/2 = -6 × 3/2
multiplication property of equality
y = -9
8 0
3 years ago
-5(x+7)<10. What does x equal?
gulaghasi [49]

Answer:

X>-9

Step-by-step explanation:

Distribute

-5x-35<10

add 35 on both sides

-5x<45

Divide -5 on both sides and flip the sign since your dividing by a NEGATIVE number

x>-9

4 0
3 years ago
Read 2 more answers
Determine which postulate or theorem can be used to prove that<br> ΔSEA= ΔΡΕΝ.
Vikentia [17]

Answer:

ASA

Step-by-step explanation:

ASA(Angle-Side-Angle) postulates states that if two angles and one included side of one triangle are congruent to the two angles and one included sides of the other triangle, then these triangles are congruent.

3 0
3 years ago
M + 5 greater than or equal to -1
sladkih [1.3K]

Answer:

m>=-6

Step-by-step explanation:

m+5>=-1

m>=-1-5

m>=-6

3 0
3 years ago
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