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Nikolay [14]
3 years ago
8

How much is three half’s plus one fifth

Mathematics
2 answers:
Maslowich3 years ago
7 0

Let's make it an expression.

Three half's= 3/2 Plus= + one fifth= 1/5

We need to turn 3/2 and 1/5 so that they have the same denominator. Let's use 10.

3/2→15/10 1/5→2/10

15/10+2/10=17/10=1 7/10

So, three half's plus one fifth is 1 7/10.

MrRa [10]3 years ago
7 0

Your answer is 3.1. the way this is done is you find a number that both of the denominators can go into, in this case 10. multiply the 2 in 1/2 by 5, and the 5 in 1/5 by two. so now your problem should look some thing like this. 3 1/10 + 1/10. combine your 1/10's so you have 3 2/20. multiply 3x20+2 62/20, 3.1

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2 years ago
-(7-9)z-6z=8(-6+2) solve for z
Sergeeva-Olga [200]

Answer:

(-(7-9))(z)-6z= 8(-6+2)

Simplify

-(-2)(z) -6z =8(-6+2)

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Combine like terms

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Step-by-step explanation:

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2 years ago
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Amanda [17]

Answer:

The measure of the third arc is 150\°

Step-by-step  explanation:

step 1

we know that

The measurement of the external angle is the semi-difference of the arcs which comprises

in this problem

Let

x----> the greater arc of the circle intercepted by the secant and the tangent

y----> the smaller arc of the circle intercepted by the secant and the tangent

42\°=\frac{1}{2}(x-y)

84\°=(x-y) ----> equation A

\frac{x}{y}=\frac{7}{3}

x=\frac{7}{3}y -----> equation B

Substitute equation B in equation A and solve for y

84\°=(\frac{7}{3}y-y)

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Find the value of x

x=\frac{7}{3}(63\°)=147\°

step 2

Find the measure of the third arc

Let

z------> the measure of the third arc

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substitute the values and solve for z

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2 years ago
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3 years ago
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sladkih [1.3K]

Answer:

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14/3 and 5/3

Dividing 14/3 by 5/3 is equivalent to dividing 14 by 5, since the denominators are the same (3).

Quotient is 14/5.

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