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frez [133]
3 years ago
14

How much is 3/4 of 120? And how much is 3/8 of 160?

Mathematics
2 answers:
joja [24]3 years ago
7 0
3/4 of 120 would be 90.
If you divide 120 into 4 equal parts, each part would be worth 30, because 30 multiplied by 4 is 120. So, to find how many 3 parts would equal, you add 30 plus 30 plus 30. 
You get 90. So, Megan has 90
3/8 of 160 would be 60 
If you divide 160 into 8 equal parts, you get 20 for each part, because 20 multiplied by 8 is 160. So to find how many 3 parts would equal, you add 20 plus 20 plus 20.
you get 60. So, Alex has 60.
The question is asking you how many more Megan has. Well, Megan has 90, and Alex has 60. 90 - 60 is 30.
Your answer would be 30.
I hope this helped
RoseWind [281]3 years ago
4 0
3/4 of 120
=3/4*120
=360/4
=90

3/8 of 160
=3/8*160
=480/8
=60
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Solve for x: three fourths times x plus five fourths equals four times x
Nostrana [21]

Answer:

x equals  five thirteenths

Step-by-step explanation:

To solve this, we will follow the steps below;

\frac{3}{4} ×  x  + \frac{5}{4}  =  4 × x

\frac{3x}{4} + \frac{5}{4}   = 4x

\frac{3x + 5}{4} =  4x

Multiply both-side of the equation by 4

\frac{3x + 5}{4} × 4=  4x × 4

On the left-hand side of the equation 4 will cancel-out 4, thus the equation becomes;

3x + 5 = 16x

subtract 3x from both-side of the equation

16x - 3x = 5

13x = 5

Divide both-side of the equation by 13

\frac{13x}{13} = \frac{5}{13}

(On the left-hand side of the equation 13 at the numerator will cancel-out 13 at the denominator while on the right-hand side of the equation 5 will be divided by 13)

x = \frac{5}{13}

x equals  five thirteenths

7 0
3 years ago
Factor the algebraic expression<br><br> 18a + 15=
Feliz [49]

18a+15

making a subject of formular

a=18-15

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4 0
2 years ago
Which point is a solution to y&lt;4x+5?
rusak2 [61]

The answer is C because -2 is less than or equal to 5. (4 times 0 is 0)

5 0
3 years ago
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In ΔABC, m∠B = m∠C. The angle bisector of ∠B meets AC at point H and the angle bisector of ∠C meets AB at point K. Prove that BH
solniwko [45]

Answer:

See explanation

Step-by-step explanation:

In ΔABC, m∠B = m∠C.

BH is angle B bisector, then by definition of angle bisector

∠CBH ≅ ∠HBK

m∠CBH = m∠HBK = 1/2m∠B

CK is angle C bisector, then by definition of angle bisector

∠BCK ≅ ∠KCH

m∠BCK = m∠KCH = 1/2m∠C

Since m∠B = m∠C, then

m∠CBH = m∠HBK = 1/2m∠B = 1/2m∠C = m∠BCK = m∠KCH   (*)

Consider triangles CBH and BCK. In these triangles,

  • ∠CBH ≅ ∠BCK (from equality (*));
  • ∠HCB ≅ ∠KBC, because m∠B = m∠C;
  • BC ≅CB by reflexive property.

So, triangles CBH and BCK are congruent by ASA postulate.

Congruent triangles have congruent corresponding sides, hence

BH ≅ CK.

5 0
3 years ago
Please be quick! I need this as soon as possible!
Katarina [22]

Answer:

64%

Step-by-step explanation:

The nickel= 9/25

The copper=16/25

1. Multiply by 4 to get a total of 100

nickel=36/100

copper= 64/100

Sorry if it is wrong but i hope i was right

5 0
3 years ago
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