All categories

2 years ago

Select two ratios that are equivant to 7:10

Mathematics

2 answers:

nikdorinn [45]2 years ago

7 0

Answer:

70:100 700:1000 14:20 140:200

STatiana [176]2 years ago

7 0

70:100 and 14:20 are equivalent

You might be interested in

Can deltamath see how long you spend on a question? Asking for a friend :)

melisa1 [442]

Answer:

Yes

Step-by-step explanation:

"data includes which problems where attempted, the time at which each problem was attempted, the answers the student submitted and whether they were correct, the duration the student was working on each problem, whether each assignment was completed on time and the completion percentage for each assignment" (paragraph 4).

Its on their privacy policy

5 0

2 years ago

Mary ran at a steady speed in a 10-mile race. Her finish time was 2 hours. Mary can bike the same

denpristay [2]

Answer:10/2

Step-by-step explanation:

7 0

3 years ago

.A tank contains seven liters of 10% alcohol solution. How many liters of 6% alcohol solution should be added to have 8% alcohol

zmey [24]

Answer: 7 liters of 6% alcohol solution.

Step-by-step explanation:

We have 7 liters of 10% alcohol solution, and in this the total amount of alcohol is

A = (10%/100%)*7 L = 0.1*7L = 0.7L

Now, suppose that we add N liters of 6% alcohol solution, then we have a total of:

(N + 7) Liters

And the total amount of alcohol would be:

(6%/100%)*N + 0.7L

0.06*N + 0.7L

The quotient between the total volume of alcohol and the total volume of liquid needs to be 0.08 (because we want a percentage of 8% of alcohol, and the decimal form of 8% is 0.08)

Then:

(0.06*N + 0.7L)/(N + 7L) = 0.08

We want to sove this for N

(0.06*N + 0.7L) = 0.08*(N + 7L)

0.06*N + 0.7L = 0.08*N + 0.56L

0.7L - 0.56L = 0.08*N - 0.06*N

0.14 L = 0.02*N

0.14L/0.02 = N = 7L

Then we need to add 7 liters of 6% alcohol solution.

6 0

3 years ago

Helppp quickkkkkkk enough points

Fynjy0 [20]

Answer:

$a=2\\\\ b = 20\\\\ c = 47$

Step by step explanation:

$a(x) = 2(x+5)^2 -3\\\\~~~~~~~=2(x^2 +2 \cdot 5 \cdot x +5^2) -3\\\\~~~~~~~=2(x^2 +10x+25) -3\\\\~~~~~~~=2x^2 +20x +50 -3 \\\\~~~~~~~=2x^2 +20x +47\\\\\text{By comparing}~ 2x^2 +20x +47~ \text{with the standard form}~ ax^2 +bx+c,\\\\a=2,~ b = 20,~ c = 47$

7 0

1 year ago

Read 2 more answers

Determine exponential function whose graph is given

jarptica [38.1K]

Answer:

What are the coordinates of point P after a counterclockwise rotation of 90°?

Step-by-step explanation:

5 0

3 years ago