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Natasha2012 [34]
3 years ago
8

Andrew took a math test with 40 questions. If he scored an 85% how many questions did he get correct

Mathematics
2 answers:
almond37 [142]3 years ago
6 0

Answer:

34

Step-by-step explanation:

1.) First, you have to turn 85% into a decimal

2.)That would be .85

3.) Then you have to multiply 40 by .85

4.) You get 34

jolli1 [7]3 years ago
3 0

Answer:

100 possible points divided by the #of questions equals 2.5 / 85% divided by 2.5 = 34

Step-by-step explanation:

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(3•x)•3-2=1 <br><br> I missed a lot of school and don’t know how to solve for x could you help me
elena-14-01-66 [18.8K]

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(3x) \times 3 - 2 = 1

(3x \times 3) - 2 = 1

9x - 2 = 1

Add sides 2

9x - 2 + 2 = 1 + 2

Simplification

9x = 3

Divide sides by 9

\frac{9x}{9}  =  \frac{3}{9}  \\

\frac{9}{9} x =  \frac{3}{9}  \\

x =  \frac{3}{3 \times 3}  \\

x =  \frac{1}{3}  \\

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4 0
3 years ago
Find the measures of the numbered angles of the parallelogram.
frosja888 [35]

Answer:

1=40

2=140

3=40

Step-by-step explanation:

We know on side

140 and side 2 are equal

1 and 3 are equal

So since 140 and 2 are equal

140*2=280

360 degrees total in any 4 sided shape

360-280=80

80/2=40

6 0
3 years ago
A rectangles width is one fifth it's length and it's perimeter is 168m. Find the dimensions of the rectangle
gayaneshka [121]
I hope this helps you



width = 1/5 .length


length =5.width


Perimeter =2 (w+l)


168=2. (w+5w)


84=6w


w=14


l=5.14=70
7 0
3 years ago
What is the factored form of x^2-9x+20
mina [271]

Answer:

(

−

5

)

(

−

4

)

Step-by-step explanation:

Not 100 percent sure

4 0
3 years ago
Y + 2 =1/2(x – 3).<br><br> Please help ?!?
Sidana [21]

first, spread the parenthesis. y+2=1/2x-1.5

second, add 1.5 to both sides. y+3.5=1/2x

third, multiply by 2. 2y+7=x

if you are solving for y, do not do the third step, instead, subtract by 3.5. y=x-3.5

hope this helps!

ANSWER: x=2y+7 or y=x-3.5

6 0
3 years ago
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