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
Tema [17]
3 years ago
6

PLZ HELP I CANT GET MY PHONE UNTIL I PASS THIS TEST HELP!!!!!!!

Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0

Answer:

49

Step-by-step explanation:

4 : 3

x : 21

ok so we can divide 21 by 3 and get 7.

7 × 4 = 28

4 : 3 = 28 : 21

now we just 28 + 21 = 49 :D

You might be interested in
Two solutions of different concentrations of acid are mixed creating 40 mL of a solution that is 32% acid. One-quarter of the so
Georgia [21]
In order to construct this equation, we will use the variables:
V to represent mixture volume (40 ml)
C to represent mixture concentration (0.32)
v₁ to represent volume of first solution (40 / 4 = 10 ml)
c₁ to represent concentration of first solution (0.2)
v₂ to represent the volume of the second solution (40 * 3/4 = 30 ml)
c₂ to represent the concentration of the second solution 


We know that the total amount of substance, product of the volume and concentration, in the final solution is equal to the individual amounts in the two given solutions. Thus:
VC = v₁c₁ +  v₂c₂
40(0.32) = 10(0.2) + 30c
6 0
3 years ago
Read 2 more answers
write two equations that when graphed look like this *see image*. please help its due soon and i will give ya 75 points for answ
myrzilka [38]

Answer:

the graph is at 4 1/2 and 0 is that what you were looking for

Step-by-step explanation:

6 0
2 years ago
Convert 99 ounces to pounds and ounces.
Simora [160]

Answer:

6 pounds 3 ounces

Step-by-step explanation:

16 oz in a lb. 16 *6 = 96. Leaving 3 oz left.

8 0
3 years ago
Read 2 more answers
Simplify an expression for the perimeter of the rectangle. Please Helpp
lorasvet [3.4K]
Answer:
16x+16

Explanation:
The perimeter is all of the sides added up. On a rectangle, only 2 sides are needed to know the perimeter because measurements are equal on both sides.

1) Write equation
2*5 + 2(8x+3)
2) Distributive property and multiply
10 + 16x + 6
3) Combine like terms
16x+16
6 0
3 years ago
Find a formula for a function f(x,y,z) whose level surface f=81 is a sphere of radius 9, centered at the origin.
Mrrafil [7]

81(9 \times 8 = 72 + 9) = 81
4 0
3 years ago
Other questions:
  • Lynn bought a box of 45 cards for $42.75 how much did each card cost?
    11·1 answer
  • What is the area of a rectangle with length (3^2)^2 meters and width of 3^2 meters?
    11·2 answers
  • Introduction to Functions: Unit Test
    15·2 answers
  • How many inches in 1.5 miles
    9·1 answer
  • Two runners are saving money to attend a marathon. The first runner has $112 in savings, received a $45 gift from a friend, and
    10·1 answer
  • 31 Two identical umber cubes are shown in the picture. The edge length of these number cubes was the combined volume of the two
    8·1 answer
  • Marco needs to buy some dog food. At the nearest store, 3 bags of dog food cost $13.50. How much
    8·1 answer
  • HELP ME ASAP WITH THIS MATH PROBLEM
    9·2 answers
  • Use a factor tree to find the GCF of 32 and 80.
    5·1 answer
  • Find the area of this shape<br> giving brainliest please help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!