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Andru [333]
3 years ago
10

Write these decimal fractions in words 42/100

Mathematics
2 answers:
hodyreva [135]3 years ago
7 0
Forty two over one hundred 
Natali [406]3 years ago
3 0
Forty two over one hundred percent
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Josslyn has nickels and dimes in her pocket. The number of nickels is three more than seven times the number of dimes let d repr
vfiekz [6]
7d+3Explanation

to solve this we need to translate into math terms, so

Step 1

a) let d represents the number of dimes

let n represents the number of nickles

so

re write the expressions

\begin{gathered} number\text{ of dimes=d} \\ seven\text{ times the number of dimes = 7d} \\  \end{gathered}

The number of nickels is three more than seven times the number of dimes in other words you have to add 7 to seven times the number of dimes to obtain the number of nickles

hence

n=7d+3

therefore , the expression for the number of nickles is

7d+3

I hope this helps you

3 0
1 year ago
Write the expression in factored form.<br> m²-nt
nydimaria [60]

Answer:

the expression is not factorable with rational numbers

I am sorry

6 0
3 years ago
Select all ratios that are equivalent to 4 : 5. (Lesson 4-1)
babunello [35]

Answer:

A 2:2.5

Step-by-step explanation:

2:2.5 is the closest ratio to 4:5, it is half of said ratio

7 0
3 years ago
Read 2 more answers
A commercial jet and a private airplane fly from Denver to Phoenix. It takes the commercial jet 1.1 hours for the flight, and it
FinnZ [79.3K]

Answer:

The speed of the private airplane is 770 mph, the speed of the commercial airplane is 980 mph.

Step-by-step explanation:

Let x mph be the speed of private airplane. If the speed of the commercial jet is 210 miles per hour faster than the speed of the private airplane, then the speed of commercial airplane is (x+210) mph.

It takes the commercial jet 1.1 hours for the flight, then it covered the distance of

1.1(x+210)\ miles

It takes the private airplane 1.8 hours for the flight, then it covered the distance of

1.8x\ miles.

The distances are the same, so

1.1(x+210)=1.8x\\ \\1.1x+231=1.8x\\ \\1.8x-1.1x=231\\ \\0.7x=231\\ \\7x=2,310\\ \\x=770

The speed of the private airplane is 770 mph, the speed of the commercial airplane is 770 + 210 = 980 mph.

3 0
3 years ago
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F(x)=-2x^2+x-5 find f(5)
julsineya [31]

f(5) = -50

Hope it helps you...

6 0
3 years ago
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