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
ivolga24 [154]
3 years ago
14

The total cost of 8 sharpeners and 3 sketchbooks is $26.05. If the cost of a sharpener is $a, and a sketchbook is $1.90 more exp

ensive,
find A. Give your answer to two decimal places.
Mathematics
2 answers:
koban [17]3 years ago
4 0

Answer:

1.85

Step-by-step explanation:

So, s (sketchbook) is a+1.90.

8a+ 3(a+1.90)=26.05

8a+3a+5.7=26.05

11a=20.35

a=1.85

Check:

8x1.85=14.8

s=11.25

White raven [17]3 years ago
4 0

Answer:

A= 1.85

Step-by-step explanation:

I made an equasion

8(a) + 3(a+1.90) = 26.05

distributed

8a+ 3a + 5.70 = 26.05

Added

11a+ 5.70= 26.05

subtracted

11a= 20.35

divided

a= 1.85

You might be interested in
alex walked 1 mile in 15 minutes. Sally walked 3520 yards in 24 minutes . in miles per hour , how much faster did sally walk tha
Leni [432]

Answer: Sally walked 3 minutes faster per mile

Hope it helped!

7 0
3 years ago
If x + 10 = 70, what is x?<br> Α. 40<br> B. 50<br> C. 60<br> D. 70<br> E. 80
Helen [10]

Answer:

C.60

x + 10 = 70

x = 70 -10

x =60

4 0
2 years ago
Read 2 more answers
The quotient of x and 3 increased by 12 is 20 what is X
katrin [286]
You set up the equation. Then you do 20 minus 12 which gives you 8. You’re left over with x/3 equals 8. 8 multiplied by 3 gives 24, so x equals 24
8 0
3 years ago
Thomas is making fruit punch for a party. The recipe calls for 5/8 gallon of orange juice to make a full pitcher of punch.
fgiga [73]

Answer:

3 remainder 1

Step-by-step explanation:

We have 2 gallons of orange juice and for each pitcher we need 5/8 of a gallon 1 gallon is = to a whole number so in this case 8/8 but because we have 2 gallons we can put it down at 16/8. 5 goes into 16, 3 times with 1 left over we can mark that as a Reminder

6 0
3 years ago
we choose a sample of size 100 from a population of monthly cable bills having standard deviation $20 If we assume the populatio
igor_vitrenko [27]

Answer:

0.0062

Step-by-step explanation:

Find the standard error.

σ = 20 / √100

σ = 2

Find the z-score.

z = (x − μ) / σ

z = (70 − 65) / 2

z = 2.5

Find the probability.

P(Z > 2.5) = 1 − 0.9938

P(Z > 2.5) = 0.0062

8 0
3 years ago
Other questions:
  • Exponents: Can me help me? This is the one, I just can't get.
    14·1 answer
  • What is the common ratio of the sequence? -2, 6, -18, 54,...
    5·1 answer
  • Rectangle A'B'C'D' is the image of rectangle ABCD after it
    12·2 answers
  • I don't understand this problem
    9·1 answer
  • Name 21 and 22 another way.
    9·1 answer
  • CAN SOMEONE PLEASE HELP ME
    12·2 answers
  • Bruce drove 25 km and his car used 4 L of gas. How many km can Bruce drive with 30 L of gas? Round your answer to the nearest km
    12·1 answer
  • Which of the following is a pair of equivalent radical expressions?
    12·1 answer
  • Shaun is building a fence around his yard.The dimensions of the area he is fencing is 20.5 yd by 11.25 yd. Shaun has calculated
    7·1 answer
  • Write a function for the tranformations described below:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!