3 years ago

What is the area of the triangle

Mathematics

1 answer:

motikmotik3 years ago

7 0

The answer is 24 inches

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GEOMETRY. 20 POINTS. PLEASE DO NOT GIVE STUPID ANSWERS.

sp2606 [1]

Hey there!

A quadrilateral has 360 degrees. So add all the degrees together to 360. 9x+1+5x-12+8x+61+90=360. 90 degrees is in the bottom left corner. Combine like terms. 22x+140=360. Subtract 140 from each side. 22x=220. Divide 22 on each side to get x=10. Plug in 10 for x in angle D. 5(10)-12=38. The measure of angle D is 38 degrees.

I hope this helps!

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4 years ago

Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an e

neonofarm [45]

Answer:

250=70x+50

Step-by-step explanation:

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3 years ago

, in a 5th grade class, three fourth of students like to go to the movies of the students who like to go to the movies, 2 thirds

s2008m [1.1K]

Answer:

15/8 or 1 7/8

Step-by-step explanation:

just divide the fractions

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3 years ago

Please let me know if you can’t see it!

BartSMP [9]

X = -4
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7 0

3 years ago

A new alloy is made by mixing 72 grams of iron with 9 grams of zinc. How many grams of iron are required to make the alloy when

iren2701 [21]

1152 grams of iron are required to make the alloy when combined with 144 grams of zinc

Step-by-step explanation:

We will use the proprtion to solve the problem

Let x2 be the quantity of iron when combined with 144 grams of zinc

So,

zinc in first alloy = z1 = 9 gm

Iron in first alloy = x1 = 72 gm

Zinc in second alloy = 144 gm

So,

$x_1:z_1::x_2:z_2\\72:9:: x_2 : 144\\\frac{72}{9} = \frac{x_2}{144}\\8 = \frac{x_2}{144}\\x_2 = 144*8\\x_2 = 1152$

Hence,

1152 grams of iron are required to make the alloy when combined with 144 grams of zinc

Keywords: Fractions, proportion

Learn more about fractions at:

#LearnwithBrainly

5 0

3 years ago

Read 2 more answers