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
soldi70 [24.7K]
3 years ago
15

If one term of a proportion is not known, what can be used to find the value of that term?

Mathematics
1 answer:
Marta_Voda [28]3 years ago
4 0
Cross multiplication would be the answer i would chose. if you have x/2 and then 3/5 you would multiply 5*x and 2*3 and eventually solve for x.
You might be interested in
One cubic meter of water weighs approximately 2200 pounds. There are 100 cm in one meter. If you have a box-shaped fish tank tha
Diano4ka-milaya [45]

Answer:

158.4 pounds

Step-by-step explanation:

first find the volume of the tank

V = 30 \times 30 \times 80

V = 72000 cm^3

to convert this to m^3 we know that 1m = 100cm

V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}}{100\,\text{cm}}\right)^3

V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}^3}{100^3\,\text{cm}^3}\right)

the cm^3 cancel out.

V = \dfrac{72000}{100^3} m^3

V = 0.072\,m^3

by simply converting the side-lengths to meters beforehand can give you this answer directly:

V = 0.3 \times 0.3 \times 0.8 = 0.072 m^3

it is given that 1 meter cube of water weighs about 2200 pounds.

1\,m^3 = 2200 \,\text{lb}

multiply both sides with 0.072 to find our answer:

1\,m^3 \times 0.072 = 2200 \times 0.072 \,\text{lb}

0.072\,m^3 = 158.4 \,\text{lb}

hence the weight of the water in the tank would be 158.4 pounds!

3 0
3 years ago
Mental Math A typical tip in a restaurant is 15% of the total bill. If the bill is $110, what would the
Katarina [22]

Answer:

$16.50

Step-by-step explanation:

15/100*110

15/10*11

3/2*11

33/3

16.50

7 0
3 years ago
Help!<br><br> Please look at the pic and help me!
inna [77]

Answer:

36

Step-by-step explanation:

equilateral triangle has all sides So,

perimeter = a+b+c= 12+12+12=36

5 0
3 years ago
Read 2 more answers
What is the value of the digit 6 in 18.06?
Crank

Answer:

hundredths

Step-by-step explanation:

5 0
3 years ago
Please help with problem !!!
True [87]

Answer:

Step-by-step explanation:

y = 2x^2 - 12x +19                Put brackets around the  1st 2 terms. Take 2

y = 2(x^2 - 6x ) + 19             Take 1/2 of the 6 square it and add inside the brackets

y = 2(x^2 - 6 + (6/2)^2) +19 Subtract 2 *9 from the 19. Express 1st 3 terms as ( )^2

y = 2(x- 3)^2 + 19 - 18

y = 2(x - 3)^2 + 1

Answers

y intercept when x = 0 is y = 19

axis of symmetry x = 3

vertex: (3,1)

Graph

graph: red

axis of symmetry: blue

y intercept, vertex: green

7 0
3 years ago
Other questions:
  • Arlo invested $4000 in an account that earns 5.5% interest compounded annually the formula for compound interest interest is A (
    15·2 answers
  • Use the ruler to calculate the distance between P which is at 7..........
    11·1 answer
  • Help!!! Please look at the images. 1 and 2 are the most difficult for me.
    5·1 answer
  • Solve for x.<br><br><br><br> ​ −2(x+14)+1=5 ​<br><br> ​ Enter your answer in the box.
    12·2 answers
  • G(x)=4x^2+1 <br> What’s the answer
    13·1 answer
  • X - 6y = 4 and 3.x – 18<br> How many solutions
    6·1 answer
  • A bathtub fills at a constant rate. The amount of water in the tub increases by 1/2 gallon every 1/10 minute. What is the unit r
    11·1 answer
  • Plss help me solve these 2 !!!!!!!!!!! for a brainlist ;))
    7·1 answer
  • 9. The scatterplot shows the value of a stock that Leslie bought
    9·1 answer
  • A map use the scale 3/4 of an inch to represent 3 miles .if the actual distance between two cities is25 miles ,then what is the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!