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Hitman42 [59]
4 years ago
13

Math question equation math

Mathematics
2 answers:
zzz [600]4 years ago
3 0

Answers and explanations is below.

timama [110]4 years ago
3 0

Answer:

1. x=2 y=10 (2,10)

2. x=-4 y=-14 (-4,-14)

3. x=2 y=-1 (2, -1)

4. no solution

Step-by-step explanation:

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In a certain​ chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 375 grams of copper. How many gra
Reika [66]

Answer: 93 grams Zinc

Step-by-step explanation:

3 Zinc : 13 Copper

x 31       x 31            

93 Zinc,     403 Copper

or

set up a proportion, cross multiply, and solve for the variable:

3(403) = 13(x)

3(31) = x

93 = x

4 0
3 years ago
Read 2 more answers
Find the measure of each angle in the problem. TO contains point H.
pickupchik [31]

Answer:

A. 45 and 135

Step-by-step explanation:

Recall: two angles on a straight line forms a linear pair. The pair sum up to 180°.

Thus:

✔️c° + 3c° = 180°

4c = 180

Divide both sides by 4

4c/4 = 180/4

c = 45°

✔️3c = 3(45) (substitution)

= 135°

8 0
3 years ago
What does n+ 5n equal too
PilotLPTM [1.2K]

Answer:

6n

Step-by-step explanation:

because n is really 1n, we just dont usually write it like that to make things quicker, so its 5 + 1, and since its 5n and 1n the answer is 6n

7 0
4 years ago
Solve: (a-7)(a+1) = 0
Svetradugi [14.3K]

Answer:

0

Step-by-step explanation:

7 0
3 years ago
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Which could you use to prove triangle AED is congruent to triangle CEB?
Hunter-Best [27]

Answer:

Option (C)

Step-by-step explanation:

Given:

In right triangles ΔAED and CEB,

m∠AED = m∠CEB = 90°

DE ≅ BE

AD ≅ BC

To prove:

ΔAED ≅ ΔCEB

                    Statements                         Reasons

1). m∠AED = m∠BC = 90°              1). Given

2). DE = BE                                     2). Given

3). AD = BC                                    3). Given

4). ΔAED ≅ ΔCEB                          4). By HL theorem of congruence

Option (C) is the answer.

4 0
3 years ago
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