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lakkis [162]
3 years ago
8

A girl has 5 more than twice as many pennies as she has dimes. Altogether she has

Mathematics
1 answer:
Cloud [144]3 years ago
7 0

Answer:

80 total coins

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Last month you spent $30.this month you spent 140% of what you spent last month.how much did you spend?
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Help !!!! Please number 1
Rudiy27

Answer:

Step-by-step explanation:

you have a special triangle 30-60-90

the ration in this traingle is x, x\sqrt{3} , 2x, where 2x is the hypothenuse

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3 years ago
Jamal wrote that 9 – 8.4 = 6
iragen [17]

Answer:

See below

Step-by-step explanation:

9 and 8.4 are less than 1 apart, so 9-8.4 must be less than 1. The actual difference is 9-8.4=0.6 which verifies that our answers are true since 0.6<1.

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2 years ago
Tony used a photocopier to dilate the design for a monorail track system. The figure below shows the design and its photocopy
Darina [25.2K]

Answer:

12 m

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Given that the design, ABCD, was dilated to get a photocopy, EFGH, a scale factor or ratio was multiplied by the original lengths of the design to get the new measurement of the photocopy.

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This means, any of the corresponding lengths of both figures would be in that same ratio.

Using the ratio of the design to the photocopy, 2:3, we can find the length of side EH of the photocopy.

The corresponding side of EH in the design is AD = 8m. Thus, AD to EH = ⅔

\frac{AD}{EH} = \frac{2}{3}

\frac{8}{EH} = \frac{2}{3}

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3*8 = 2*EH

24 = 2*EH

Divide both sides by 2 to make EH the subject of formula

\frac{24}{2} = \frac{2*EH}{2}

12 = EH

The length of side EH = 12 m

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