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Zina [86]
3 years ago
7

bindi has a collection of 175 dimes and nickels. the collection is worth $13.30. how to write this equation?

Mathematics
1 answer:
Mice21 [21]3 years ago
7 0
Hello,
Let's x the number of dimes
175-x then number of nickels

A dime is $0.10 and a nickel is $0.05.

0.10*x+0.05*(175-x)=13.30
10x-5x=1330-5*175
5x=455
x=91 (dimes) and 175-91=84 nickels
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Answer:

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3 years ago
Write the reciprocal of -3/7
Alex_Xolod [135]
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Hope this helps!
6 0
3 years ago
Read 2 more answers
PLEASE HELP ME!! I can’t figure this out
DochEvi [55]
Hello!

The problem has asked that we write a point-slope equation of the line in the image above. Point-Slope Form uses the following formula:

y – y_{1} = m(x – x_{1})

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We are given that the slope of the line is -\frac{5}{7}. We also know that any given point on a graph takes the form (x,y). Based on the single point provided in the image above, we can determine that X_{1} is equal to 6 and Y_{1} is equal to 2. Now insert all known values into the point-slope formula above:

y – 2 = -\frac{5}{7}(x – 6)

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I hope this helps!

7 0
3 years ago
at a conference of 250 people, 30% of the participants are french, 35% are americans, 20% are germans, and the rest are of the o
Lady bird [3.3K]
Ok...we got 250 people
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3 not from other countries...
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5 0
3 years ago
AC = <br> Round your answer to the nearest hundredth.
dusya [7]

Answer:

AC ≈ 5.03

Step-by-step explanation:

We can solve the problem above using the trigonometric ratio, they are;

SOH CAH TOA

sin Ф = opposite / hypotenuse

cosФ= adjacent/ hypotenuse

tan Ф = opposite / adjacent

From the diagram above, in reference to angle B;

opposite =AC     and   adjacent =BC

Since we have opposite and adjacent, the best formula to use is

tanФ = opposite / adjacent

tan B = AC  / BC

tan 40 =  AC/ 6

Multiply both-side of the equation by 6

6× tan 40   =  AC/ 6  ×  6

At the right-hand side of the equation, 6 will cancel-out 6 leaving us with just AC

6×tan 40 = AC

5.034598  = AC

AC ≈ 5.03   to the nearest hundredths

4 0
4 years ago
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