3 years ago

One step equations with fractions

Mathematics

2 answers:

nirvana33 [79]3 years ago

8 0

Answer:

10. cross multiply

7x=28×9

7x=252

x=36

12. cross multiply

2x=12×3

2x=36

x=18

Bas_tet [7]3 years ago

6 0

Answer:

look

Step-by-step explanation:

shown in the picture

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You are mowing a lawn. After 12 minutes, 52% of the lawn still needs mowed. How long does it take to mow the entire lawn? Write

aleksley [76]

12/x = 52/48
12 * 48 = 52x
x = 11.07 This is one way to do it.

Let the time = x
Let the part of the lawn = y

The general equation
y = k*x
52/100 = k * 12
k = 0.043333
y = 0.043333*x
y = 0.043333* 11.08
y = 0.48 which is what it should be.

Yet another way is to let y = kx
52 = k*12
k = 52/12
k = 4.33333333

y = 4.333333 * x
y = 4.333333 * 48
48 = 4.333333 * x
x = 11.07 which is just what you should expect.

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3 years ago

The 1st term in a geometric series is 5 and the common ratio is 2. Find the sum of the 1st 10 terms in the series.

lesya [120]

Answer:

5115

Step-by-step explanation:

a1(1-(r)^n)/1-r

5(1-(2.00)^10)/1-2.00

3 0

3 years ago

−8−minus, 8, minus <br><br> =<br> 2<br> =2equals, 2

Vlad1618 [11]

Answer:

to the first one the answer is 0. To the number 2 the answer is 2

6 0

3 years ago

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In triangle NOP p equals 600 inches angle P equals 96° and angle N equals 64° what is the area of triangle NOP to the nearest 10

DochEvi [55]

9514 1404 393

Answer:

55,637.8 square inches

Step-by-step explanation:

We can find side n using the Law of Sines:

n/sin(N) = p/sin(P)

n = p(sin(N)/sin(P)) = 600·sin(64°)/sin(96°)

n ≈ 542.246913 . . . . inches

The angle O is ...

O = 180° -N -P = 180° -64° -96° = 20°

Then the area is ...

A = 1/2·np·sin(O)

A = (1/2)(542.246913 in)(600 in)·sin(20°) ≈ 55,637.81008 in²

The area of ∆NOP is about 55,637.8 in².

7 0

3 years ago

Look at the steps used when solving 4(x−3) = 8

azamat

step 2 i believe is the answer

3 0

3 years ago

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