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3 years ago

Please help what is I need it for school 4/5 + 3/7 x 2

Mathematics

2 answers:

Ne4ueva [31]3 years ago

8 0

The answer for it is 58/35

boyakko [2]3 years ago

3 0

Answer:

$\frac{58}{35}$ is the answer.

Step-by-step explanation:

1) Use this rule: $\frac{a}{b} * c = \frac{ac}{b}$

$\frac{4}{5} + \frac{3*2}{7}$

2) Simplify 3 * 2 to 6.

$\frac{4}{5} + \frac{6}{7}$

3) Simplify.

$\frac{58}{35}$

Therefor, the answer is 58/35 and if you need it on decimal form it would be, 1.657143.

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Evelyn went shopping with half of her monthly allowance. She spent $39.95 on a dress and 3/7 of the remainder on some accessorie

Gnoma [55]

Answer:

Evelyn monthly allowance is $187.

Step-by-step explanation:

Let the monthly allowance be 'x'.

Given:

Money taken with for shopping = $\frac{x}{2}$

Money spent of dress = $39.95

Also Given:

3/7 of the remainder on some accessories.

Money spent on accessories is equal to $\frac{3}{7}$ times Difference of monthly allowance and Money spent of dress.

framing in equation form we get;

Money spent on accessories = $\frac{3}{7}\times(\frac{x}{2}-39.95)$

Also Given:

Money left after shopping = $30.60

Now we know that;

Money taken with for shopping is equal to sum of Money spent of dress and Money spent on accessories and Money left after shopping.

framing in equation form we get;

$\frac{x}{2}=39.95+\frac{3}{7}(\frac{x}{2}-39.95)+30.60\\\\\frac{x}{2}=39.95+\frac{3x}{14}- 17.12 +30.60$

Combining like terms we get;

$\frac{x}{2}-\frac{3x}{14}=39.95-17.12+30.60\\\\\frac{x}{2}-\frac{3x}{14}= 53.43$

Now we will make denominator common using L.C.M

$\frac{x\times 7}{2\times7}-\frac{3x\times1}{14\times1}= 53.43\\\\\frac{7x}{14}-\frac{3x}{14}= 53.43\\\\\frac{7x-3x}{14}=53.43\\\\\frac{4x}{14}=53.43\\\\4x=53.43\times14\\\\x= \frac{53.43\times14}{4} = \$187$

Hence Evelyn monthly allowance is $187.

3 0

4 years ago

Subtract. What is the difference (9 x10^10) - (4 x 10^10) in scientific notation? Helppp

pishuonlain [190]

Answer and explanation:

The answer would be 5 × $10^{10}$ . Both numbers are being multiplied by 10 to the tenth power, so all you need to do is sabtract the numbers in the front and keep the 10 to the tenth power the same.

7 0

3 years ago

Please help me on this math vocabulary

emmasim [6.3K]

A parallelogram is a quadrilateral with opposite sides parallel .

A trapezoid is a quadrilateral with two sides parallel.

A rhombus is a quadrilateral which all sides are congruent and opposite sides are parallel.

4 0

4 years ago

Read 2 more answers

1. Determine which of the following are propositions. If a sentence is a proposition, determine whether

Nonamiya [84]

Answer: d) true

Step-by-step explanation:

A proposition in mathematics is when the sentence is stated in If-then format.

Option d is the only sentence in this format:

IF x = 5, THEN x² = 25

this statement is true --> 5² = 25

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3 years ago

There were 6,954 cases filed with the Supreme Court. Of these only 82 were decided by the Supreme Court. What percentage was dec

Sveta_85 [38]

Answer:

Hey there!

The percentage is 82/6954, which you can find to be around 0.011, or 1.1%.

Hope this helps :)

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4 years ago