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givi [52]
3 years ago
9

Twice the difference of a number and 9 equals 7

Mathematics
2 answers:
shusha [124]3 years ago
8 0

Answer:

2(X - 7) = 9.

Step-by-step explanation:

Twice means muliply by 2. -The difference of a number and 7 means subtract a number/variable and 7. -Is equal to 9 means =9. 2(X - 7) = 9.

Oxana [17]3 years ago
6 0
2(x-9)=7 solve and you would get the answer
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Sonali invests 15% of her monthly salary in insurance policies.
strojnjashka [21]

Answer:

₹42,500

Step-by-step explanation:

Let Sonali's monthly income be ₹x

<h2>According to the question </h2>

15\% \:ofx + 55\% \: of \: x + 12750 = x

=  >  \frac{15}{100} x +  \frac{55}{100} x + 12750 = x

=  >  \frac{70}{100} x + 12750 = x

=  > 12750 = (1 -  \frac{70}{100} )x

=  > 12750 = 30x

=  > x =  \frac{12750 \times 10}{3}

=  > 42500

So your answer will be ₹42,500.

3 0
2 years ago
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h = 54 ÷ 9 whats the answer? plzzzzzzzzzzzzz help me its finna be fall break and im still doing work plzzzzzzzzzzzzzzzzzzzzzzzzz
GarryVolchara [31]

Answer: h=6

Step-by-step explanation: all you have to do is divide 54 by 9 and you get your answer. But make sure you put h first

6 0
3 years ago
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Why is a rational number?
klio [65]

Answer:

A rational number is a number that can be express as the ratio of two integers.

Step-by-step explanation:

5 0
3 years ago
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Need help! Stuck on this help! help! help
nexus9112 [7]

The amount of fabric in inches Felicia need to make the actual shape for the comforter is 660 in²

<h3>What is a trapezoid?</h3>

It is defined as the quadrilateral having four sides in which two sides are parallel to each other, it is a 2-dimensional geometry.

We have a trapezoid in the picture shown with dimensions.

We know the area of the trapezoid is given by:

\rm A = \dfrac{a+b}{2} \times h

Here a = 15 cm, b = 22 cm and h = 11 cm

\rm A = \dfrac{15+22}{2} \times 11

A = 203.5 square cm

To make the square from the trapezoid, Felicia needs to cut two triangles from the both end, as shown in the figure.

The height of the triangle = 11 cm

And base length = (22-15)/2 = 3.5 cm

The area of the triangle = (11×3.5)/2 = 19.25 square cm

Area of the two triangles = 2×19.25 = 38.5 square cm

Now the amount of fabric  =  203.5 -  38.5 = 165 square cm

As the scale is given 1 cm = 2 in

1 cm ² = 4 in²

So, the amount of fabric in inches = 165×4 = 660 in²

Thus, the amount of fabric in inches Felicia need to make the actual shape for the comforter is 660 in²

Learn more about the trapezoid here:

brainly.com/question/8643562

#SPJ1

3 0
2 years ago
Solucion de esto : 9X2 = -15x
wolverine [178]

Answer:

9x2 = 18

Step-by-step explanation:

Im not sure what you mean lol

3 0
2 years ago
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