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
____ [38]
2 years ago
6

7. Solve each equation.

Mathematics
1 answer:
Firlakuza [10]2 years ago
4 0

Answer:

answer is in the picture

You might be interested in
Mr. Vedra deposited $1,200 in a certificate of deposit (CD) at an interest rate of 5.5%. He earned $198 in simple interest. How
UkoKoshka [18]

Answer: 3 (include unit in your answer, as it was not mentioned in question)

Step-by-step explanation:

5.5% of 1200 =

1200/100 x 5.5 = 66

Time = 198/66 = 3

put the units in, if its 5.5% per annum or months or days, since it wasnt mentioned in the question :)

4 0
3 years ago
The sum of the digits of a two-digit number is 14. If the number formed by reversing the digits is less than the original number
aivan3 [116]

Answer: Dear friend my answer for this question is 86.

Step-by-step explanation:Let the two digits of two digit number be, 10s digit x and 1s digit y.

x + y = 14

x = 14 - y…..Eq..1

The nuber formed is 10x + y

If the number formed by reversing the digits is 18 less than the original number, what is the original number

On reversing the digit the number will be 10y + x

10y + x + 18 = (10x + y)

10y + x = 10x + y - 18

10y - y + x - 10x = - 18

9y - 9x = -18…Eq..2

Now substituting the value of x from Eq..1 to Eq..2

9y - 9 (14 - y) = - 18

9y - 126 + 9y = - 18

18y = 126 - 18

18y = 108

y = 108/18

y = 6

Thus 1s digit if the number is 6

Substituting the derived value of y in Eq..1 to derive value of x.

x = 14 - y

x = 14 - 6

x = 8

The 10s digit if two digit number is 8.

The original number formed is 86.

On reversing the digits, the number transform to 68, which is 18 less than original number

Answer the original number is 86.

5 0
3 years ago
Sonji has $5.25 in nickels and dimes.The coin value can be modeled by the equation 0.10d + 0.05n = 5.25, where d represents the
barxatty [35]
<span>To find the number of nickels and dimes, we can use this equation: 0.10d + 0.05n = 5.25

We are given the information that Sonji has 21 dimes (which means that d=21). We can use the equation to find the number of nickels n.

0.10d + 0.05n = 5.25
0.10(21) + 0.05n = 5.25
2.10 + 0.05n = 5.25
0.05n = 3.15
n = 3.15 / 0.05
n = 315 / 5
n = 63

Sonji has 63 nickels.

Let's check our answer.
21(0.10) + 63(0.05) = 2.10 + 3.15 = 5.25
It seems that our answer is correct.</span>
7 0
3 years ago
Read 2 more answers
A 7 pound bag of dog food costs $21 What is the unit price of the dog food?
DiKsa [7]
I feel like it the answer is A
8 0
3 years ago
Read 2 more answers
PLEASE HURRY I HAVE A TIME LIMIT
Softa [21]

Answer:

CAB = 30.71   BCA = 90    ABC = 59.29

Step-by-step explanation:

BCA = 90

9x + 6 + 5x = 90

14 x = 90-6 = 84

x = 43/7

(43/7 ) * 5 = 30.71

90 - 30.71 = 59.29

6 0
3 years ago
Other questions:
  • Given f(x) = 5x-1....what is f(-2) ?
    7·2 answers
  • A cafeteria was putting milk cartons into stacks. They had nine hundred twenty-six cartons and were putting them into stacks wit
    13·1 answer
  • A rectangular prism has a surface area of 286 ft squared. The base is 5ft by 7ft what is the height of the prism?
    7·1 answer
  • PLEASE HELP, BEST ANSWER GETS BRAINIEST Each letter of the word "RESPONSIBLE" is written on a separate slip of paper and placed
    5·2 answers
  • Please Help!!<br><br> Use the graph of the equation to solve: -2x - 5 = 3
    15·1 answer
  • What is the factored form of the expression x2−4x ?
    7·1 answer
  • The list of ordered pairs below represents a function
    6·1 answer
  • What is the radius of a sphere with a volume of 797 ft^3to the nearest tenth of a<br> foot?
    13·1 answer
  • The product of r and 8​
    10·1 answer
  • Why might andrew have stopped 3 times for 1 minute?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!