1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
den301095 [7]
3 years ago
8

A boy has 11 coins in dimes and quarters. Their value is $1.70. How many of each does he have?

Mathematics
1 answer:
nydimaria [60]3 years ago
3 0

0.10x + 0.25(11 - x) = 1.70

<em>It has the correct values </em>

You might be interested in
AB and BC are tangent to circle D. Find x if AB = 2x + 9 and BC = 3x + 6. Find x.
mestny [16]
It woulds be x+15 because if you take 2x and subtracted from the 3x then you get x and then you add the 9 and 6 witch you get 15 
6 0
3 years ago
Read 2 more answers
The difference of two rational numbers is always negative true of false
Vlada [557]

Comparing two rational numbers

Use fraction form:

 

Make the denominators the same and compare the numerators. The number with the smaller numerator is smaller. For example, to compare a/b and c/d, we rewrite

 

a/b=a*d/b*d

  = ad/bd and c/d = c*b/d*b=bc/bd

 

Now just compare the numerators : "ad" and "bc"

 

Multiplying and Dividing Rational Numbers 

 

Multiplying and dividing rational numbers in decimal form is the same as multiplying and dividing integers. The decimal place of the product is the same of all decimals of all multiplied numbers. For example, 3.12*2.4.

 

Solution => 3.12*2.4=7.488

 

When multiplying or dividing rational numbers in fractional form, you multiply the numerators (N*N) and then multiply the denominators (D*D).

 

When dividing rational numbers in fractional form, first take the reciprocal of the divisor, and then multiply the numerators and the denominators.

 

Example => 5/9 divided by 2/7 .

 

Solution => 5/9 * 7/2 =  35/18

 

 

Adding Rational numbers

 

Adding and Subtracting rational numbers in decimal form is the same as adding and subtracting integers.

 

Example => -3.54+2.79=-0.75

 

When adding or subtracting rational numbers in fractional form, first make the denominator equal, and then add or subtract the numerators.  

The difference can be negative or positive. 

7 0
3 years ago
maze going to the lake to visit some friends at the lake is 60 miles away and Renee is driving 40 mph the entire time how long w
mojhsa [17]

Answer:

it will take her an hour and 25 minutes roughly

Step-by-step explanation:

7 0
3 years ago
A sweater is originally $25 and is on sale for $19. What is the percent off of the sweater?
True [87]

Answer:

24%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Giving stars and thanks :) also be ready for more if you can help me !
Ber [7]
Number 1 is B and number 2 I belive is C. I hope I'm rightt, and I hope this helps.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Matrice question please help!
    6·1 answer
  • Evaluate.<br><br> –345 + 562 – (–209)
    5·1 answer
  • Luke’s that seven pieces of wood on top of one another if each piece was 4/8 of a foot tall how tall was his pile
    15·1 answer
  • A survey reported that 713,298 people visited the local science museum last year. How can 713,298 be written in word form?
    15·2 answers
  • Common factors of 18w and 30wz
    8·2 answers
  • Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
    10·2 answers
  • √-1<br> factor completely without any 'i'
    7·1 answer
  • The distance from point (2,1) to point (7,13) is:<br> O V12<br> O /14<br> O 10<br> O 62<br> O 13
    9·1 answer
  • 12x - 11 - 53 - 9x - 45
    12·2 answers
  • The first four laguerre polynomials are 1, 1 - t, 2 - 4t t2, and 6 - l 8t 9t2 - t 3 . show that these polynomials form a basis o
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!