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Dmitry [639]
3 years ago
14

Emergency plz help me !!

Mathematics
1 answer:
Vlad [161]3 years ago
6 0

Oh  boyy--

The slope intercept form is : y= 5x+17

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There are 212 students in the 8th grade class. The number of girls is 49 less than twice the number of boys. How many girls and
Anna71 [15]

Answer:

girls = 125

boys = 87

Step-by-step explanation:

Total number of students in the 8th grade class = 212

Let g represent girls and b represent boys

Number of girls, g = 2b -49

Note that boys and girls in the class give a total of 212

So,

g + b = 212 ....eq 1

Slot in the value of g in the equation

2b - 49 + b = 212

2b + b - 49 = 212

3b - 49 = 212

Add 49 to both sides

3b - 49 + 49 = 212 + 49

3b = 261

Divide both sides by the coefficient of b which is 3

b = 87

Now that we've found the number of boys, let's find that of girls

We will slot in the value of b in eq 1

g + 87 = 212

Subtract 87 from both sides

g + 87 - 87 = 212 - 87

g = 125

So the number of boys is 87 and the number of girls is 125

8 0
3 years ago
Evaluate √121.<br> A.11<br> B.12<br> C.13<br> D.14
Anvisha [2.4K]

Answer:

A.11

Step-by-step explanation:

sqrt(121)

What number times itself is 121

11*11 = 121

-11*-11 =121

We have two options 11 or -11

Given our choices

A.11

4 0
3 years ago
Read 2 more answers
Write an equivalent expressions to 2x + 3 + 5x +6 by combining like terms Your standard form +
Stolb23 [73]

Answer:

7x+9

Step-by-step explanation:

combine like terms

plz brainliest!

8 0
3 years ago
I need help with my assignment.....
Elena-2011 [213]

Answer:

From what i see i think your answer would be 150°

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
The amount of revenue in dollars, y, that Jason receives from selling x posters is given by the equation y = 1/2x +280. How many
Troyanec [42]
Referring to the complete question : brainly.com/question/9714396

Revenue from selling the posters:
y = 4x

Cost of producing the posters:
y = 1/2x + 280

Equate and solve for x
4x =  \dfrac{1}{2}x + 280

4x- \dfrac{1}{2}x = 280

3\dfrac{1}{2}x = 280

\dfrac{7x}{2} = 280

7x =560

x = 560 \div 7

x = 80


Answer: Jason must sell 80 of the posters so that the cost and revenue are equal.

6 0
4 years ago
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