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Kruka [31]
3 years ago
5

A person has two times as many nickels as quarters. if the total face value of these coins is $4.55, how many of each type of co

in does this person have?
Mathematics
1 answer:
Sloan [31]3 years ago
8 0
<span>Let
He has = x quarters
He has = 2x nickels 

Total Amount = $3.50 or 3.50*100 = 350 cents 

x*25+2x*5=350
25x+10x=350
35x=350

35x/35=350/35
x=10 

He has = x = 10 quarters 
He has = 2x = 2*10 = 20 nickels 

Check
====== 
10*25 + 5*20 = 350
250+100=350
350=350</span>
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One serving of the food product contains 1g total saturated fat or 5% daily value (DV) for saturated fat. What is the daily valu
Leona [35]

Answer:

The daily value for saturated fat is 20g.

Step-by-step explanation:

Percentage problems can be solved by rule of three

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too. In this case, the rule of three is a cross multiplication.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease. In this case, the rule of three is a line multiplication.

A percentage problem is an example where the relationship between the measures is direct.

The problem states that 1g is 5% of the daily value for saturated fat. The daily value(100%) for saturated fat is x, so:

1g - 5%

xg - 100%

5x = 100

x = \frac{100}{5}

x = 20g

The daily value for saturated fat is 20g.

6 0
3 years ago
Ayo can someone help me with this
LekaFEV [45]
Answer:
1.25 x 3 = $3.75
7 0
3 years ago
Read 2 more answers
(2x+1)/2=(x+2)/5<br><br>if possible can you show me step by step how to get the answer <br>​
katrin2010 [14]

Answer:

\boxed{\bold{Decimal \ Form: \ x \ = \ -0.125}}

\boxed{\bold{Fraction \ Form:x=-\frac{1}{8}}}

Step By Step Explanation:

Apply Fraction Cross Multiply: If \bold{\frac{a}{b}=\frac{c}{d}:then\ a\cdot \:d=b\cdot \:c}

\bold{\left(2x+1\right)\cdot \:5=2\left(x+2\right)}

\bold{\left(2x+1\right)\cdot \:5: \ 10x+5}

\bold{2\left(x+2\right): \ 2x+4}

\bold{10x+5=2x+4}

Subtract 4 From Both Sides

\bold{10x+5-5=2x+4-5}

Simplify

\bold{10x=2x-1}

Subtract 2x From Both Sides

\bold{10x-2x=2x-1-2x}

Simplify

\bold{8x=-1}

Divide Both Sides By 8

\bold{\frac{8x}{8}=\frac{-1}{8}}

Simplify

\bold{x=-\frac{1}{8}}

Turn Fraction Into Decimal

\bold{-1 \ \div \ 8 \ = \ -0.125}

\bold{-0.125}

Regards,

   Mordancy

8 0
3 years ago
Yolanda wants to first look for a single transaction that could have caused this problem with reconciliation. What is the amount
shusha [124]

Answer:b

Step-by-step explanation:

5 0
3 years ago
A + b + c = 4<br> a^2 + b^2 + c^2 = 10<br> a^3 + b^3 + c^3 = 22<br> a^4 + b^4 + c^4 = ?
77julia77 [94]

Answer:

the answer is 40, turn it into a number pattern and from there you can work out the answer to be 40

7 0
2 years ago
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