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
ipn [44]
3 years ago
5

Find the value of: a) 2x when x=5 b) 4y when = -3 c) 3z when z = 1.2

Mathematics
1 answer:
ohaa [14]3 years ago
5 0

Answer:

A. 10. B. -12. C. 3.6

Step-by-step explanation:

You will do this:

a) If x=5 (what about 2x)

=2x times 5 divide by x .That makes the answer 10

b) If y=-3(what about 4y)

=4y times -3 divide by y .That makes the answer -12.

c) If z=1.2(what about 3z)

=3z times 1.2divide by z. That makes the answer 3.6.

You might be interested in
What is the exact circumference of the circle?
fredd [130]
Data:

Formula: diameter = 2*radius

Formula: (<span>Circle length)
</span>C = 2* \pi *r
<span>
Solving: </span><span>Using the data
</span>diameter = 2*radius
20 = 2*r
2r = 20
r =  \frac{20}{2}
\boxed{r = 10\:ft}

<span>Now, replace in the circumference length formula
</span>C = 2 \pi *r
C = 2 \pi *10
\boxed{\boxed{C = 20 \pi \:ft}}\end{array}}\qquad\quad\checkmark

Answer:
<span>The exact circumference of the circle is </span>20 \pi \:ft
7 0
3 years ago
Plz help asap with a explanation of why that’s the answer
Olegator [25]

Answer:

1st option

Step-by-step explanation:

y = 1/2x + 2

7 0
3 years ago
Read 2 more answers
Jim makes $480 in a 4-week period helping his grandfather on the farm, He spends an average of 15 hours a week
marin [14]

Answer:

he makes $8 an hour

Step-by-step explanation:

Since he makes $480 over 4 weeks you divide that by 4 and you should get 120. So that means he makes $120 in one week and since he works 15 hours a week you divide 120 by 15 and you should get 8

6 0
3 years ago
Read 2 more answers
The sales tax on clothing in Nebraska is 5.5%. Calculate how much tax you need to pay on a shirt if it costs $18.20 before tax.
maria [59]

Answer:

$1.00

Step-by-step explanation:

The tax rate in Nebraska = 5.5%

Cost of the shirt before tax = $18.20

Therefore:

Tax to be paid = 5.5% of $18.20

=0.055 \times \$18.20\\=\$1.00 $(correct to the nearest cent)

The amount you need to pay as tax is $1.00.

5 0
3 years ago
Please help, I am stuck on this question.
tangare [24]
Vote me 1 star but what are they teaching yall
5 0
3 years ago
Other questions:
  • There are 9 more pencils then pens in a container. There are 25 writing utensils in the container in all. How many pens are ther
    6·1 answer
  • Bob can run 5 miles in 1.25 hours. Stan can run 3 miles in 50 minutes. Who can run faster?
    7·1 answer
  • Please help!
    11·1 answer
  • Attached is my problem
    10·1 answer
  • What is the y-intercept of y = 5 ?
    12·1 answer
  • WILL GIVE BRAINLIEST ian solved the system of equations by making a substitution for y in the second equation. What equation did
    9·1 answer
  • Joe’s Car Shop received a shipment of 40 cars. The cars each weighed the same amount. The total shipment weighed 55 tons. What w
    8·1 answer
  • Question 20 (5 points)
    6·1 answer
  • The slope of a roof is called its pitch. The Parthenon,an Ancient Greek temple, has a roof with the rise of 4 m in a run of 12 m
    6·1 answer
  • I need help its math
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!