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3 years ago

Could use some help with this math problem. Solve: 4y + 3 = 15.

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

Answer:

y = 3

Step-by-step explanation:

4y + 3 = 15 First subtract 3 from each side.

4y + 3 - 3 = 15 - 3 The 3 on the left will cancel.

4y = 15 - 3

4y = 12 Divide each side by 4

4y/4 = 12/4 The 4 on the left will cancel because 4/4 = 1

y = 12/4

y = 3

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Ratling [72]

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3 years ago

Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will

Oksanka [162]

Answer:

Ella should add $32\dfrac{5}{6}$ lbs of water.

Total weight of syrup $33\dfrac{1}{3}$ lbs

Step-by-step explanation:

Weight:

Weight of sugar = 0.5 lbs.

Weight of water added = x lbs

Total weight = 0.5 + x lbs

Percentage:

0.5 + x -- 100%

0.5 -- 1.5%

Write a proportion:

$\dfrac{0.5+x}{0.5}=\dfrac{100}{1.5}$

Cross multiply:

$1.5(0.5+x)=0.5\cdot 100\\ \\0.75+1.5x=50\\ \\1.5x=50-0.75\\ \\1.5x=49.25\\ \\x=\dfrac{49.25}{1.5}=\dfrac{4,925}{150}=\dfrac{197}{6}=32 \dfrac{5}{6}\ lbs$

Ella should add $32\dfrac{5}{6}$ lbs of water.

Total weight of syrup

$32\dfrac{5}{6}+\dfrac{1}{2}=32\dfrac{5}{6}+\dfrac{3}{6}=33\dfrac{1}{3}\ lbs$

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2 years ago

Which statement is true about ∠1 and ∠2?

gavmur [86]

Answer: Most likely A

Step-by-step explanation:

the reason I say its A is because of the face that congruent means in line not and straight. Though in your answer it shows that they are not alined so that leaves us with complemantary and the 2 complementary answer choices are

A & C but C is wrong because it say alternate which also means the that they would be 2 different angels so yeah I'm gonna go for A.

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2 years ago

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victus00 [196]

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1-4. 2-4. 3-4. 4-4. 5-4. 6-4
1-5. 2-5. 3-5. 4-5. 5-5. 6-5
1-6. 2-6. 3-6. 4-6. 5-6. 6-6

What is the total for each roll?

2. 3. 4. 5. 6. 7.
3. 4. 5. 6. 7. 8
4. 5. 6. 7. 8. 9
5. 6. 7. 8. 9. 10.
6. 7. 8. 9. 10. 11.
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3 years ago

Square ABCD is located on a coordinate plane. The coordinates for three of the vertices are listed below.

Marrrta [24]

Answer:

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Step-by-step explanation:

First find the coordinates of the vertex B. The center of the square M is the midpoint of the diagonal AC. Since A(2,7) and C(8,1), the center has coordinates

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Hence, B(8,7).

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(x,y)→(2x,2y).

Thus,

B(8,7)→B'(16,14).

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3 years ago