How can victoria justify step 3 of her work

Mathematics

2 answers:

Marina CMI [18]3 years ago

7 0

Answer:

More info please

Step-by-step explanation:

Wittaler [7]3 years ago

4 0

A little more info please?

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Sonya can walk 6 kilometers in 3 hours. If she has to walk 10 kilometers how much time will it take her?

kupik [55]

$6\ km\ in\ 3\ hours\\\\
10\ km\ in\ x\ hours\\\\
proportion:\\
6-3\\
10-x\\\\
cross\ multiplication\\\\
6x=3*10\\\\
6x=30\ \ \ | divide\ by\ 6\\\\
x=5\\\\ It\ will \ take\ 5\ hours.$

5 0

3 years ago

Compare & contrast the graphs of y = 5x+9 and y - 5x=3

arlik [135]

They both run diagonally (compare)...
the <span>y = 5x+9 is moved 6 points to the left
</span>
hope it works

3 0

3 years ago

jason runs 440 yards in 75 seconds. At this rate, how many minutes does it take him to run a mile? (1 mile = 1,760 yards).

mamaluj [8]

Answer:

5 minutes

Step-by-step explanation:

we know that

Jason runs 440 yards in 75 seconds

using proportion

Find out how many minutes does it take him to run a 1.760 yards (one mile)

$\frac{440}{75}=\frac{1,760}{x}\\\\x=1,760(75)/440\\\\x= 300\ sec$

Convert seconds to minutes

Divide by 60

$300\ sec=300/60=5\ min$

8 0

2 years ago

A box of Munchkins contains chocolate and glazed donut holes. If Jacob ate 2 chocolate

neonofarm [45]

Answer:

24 munchkins.

Step-by-step explanation:

Let C be the number of chocolate and D be number of glazed donut holes in the original box.

We are told if Jacob ate 2 chocolate munchkins, then 1/11 of the remaining Munchkins would be chocolate. We can represent this information as:

$C-2=\frac{1}{11}*(C+D-2)...(1)$

We are also told if he instead added 4 glazed Munchkins to the original box, 1/7 of the Munchkins would be chocolate. We can represent this information as:

$C=\frac{1}{7}*(C+D+4)...(2)$