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shusha [124]
3 years ago
10

1/3-(-1/5) A-1/2 B1/4 C2/15 D 8/15​

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0

Answer:

D, 8/15

Step-by-step explanation:

1/3 + 1/5

= 1(5)/3(5) + 1(3)/5(3)

= 5/15 + 3/15

= 8/15

You might be interested in
If h and j are positive, (h+j)2 = 73 and h2 +j2 = 51, what is hj?
kkurt [141]

Answer:

hj = 11

Step-by-step explanation:

  • (h+j)^2=73,\:\: and\:\: h^2+j^2 =51 (Given)

  • (h+j)^2 = h^2+j^2 +2hj

  • \implies 73= 51 +2hj

  • \implies 73- 51 =2hj

  • \implies 22 =2hj

  • \implies hj = \frac{22}{2}

  • \implies hj = 11
3 0
2 years ago
When a fraction of 12 is taken away from 17, what remain exceed one-third of seventeen by six.
vova2212 [387]
X - the fraction

17- 12x=\frac{1}{3} \times 17+6 \\
17-12x=\frac{17}{3}+6 \\
-12x=\frac{17}{3}+6-17 \\
-12x=\frac{17}{3}-11 \\
-12x=\frac{17}{3}-\frac{33}{3} \\
-12x=-\frac{16}{3} \\
x=-\frac{16}{3} \times (-\frac{1}{12}) \\
x=\frac{16}{36} \\
x=\frac{4}{9}

The fraction is 4/9.
5 0
3 years ago
Please help me thanks
PilotLPTM [1.2K]
6x + 45 + 3x = 180
9x - 45 = 180
9x = 135
x = 15
8 0
3 years ago
3 friends are sharing 1/2 of a blueberry ....how much pie would each friend get
melisa1 [442]

Answer:

each friend would get 1/6 when you divide 1/2 by 3

Step-by-step explanation:

3 0
3 years ago
What is the constant of proportionality in the equation?
IrinaVladis [17]

Answer:

The constant of proportionality is option D i.e 5.

Step-by-step explanation:

Variation:

Variation problems involve fairly simple relationships or formulas, involving one variable being equal to one term. There are two types of variation i.e.

  1. Direct variation
  2. Inverse variation

Direct Variation:

Mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other.

Example y=kx

where, k  is constant of proportionality.

The above given example is of Direct Variation

∴ y = 5 x

∴ k = 5 = constant of proportionality.

Inverse Variation:

Mathematical relationship between two variables which can be expressed by an equation in which the product of two variables is equal to a constant.

Example yx=k

where, k  is constant of proportionality.

5 0
4 years ago
Read 2 more answers
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