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3 years ago

1. -10x+5y = 40 (1 point)

Mathematics

1 answer:

vladimir2022 [97]3 years ago

8 0

Answer:

-4 and 8

Step-by-step explanation:

trust me

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Sauron [17]

Answer: find the highest number they both divided by that should give you the answer

Step-by-step explanation:

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3 years ago

SUBTRACTING FRACTIONS PLS HELP

svet-max [94.6K]

Answer: 1. 3 1/6

Step-by-step explanation:

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3 years ago

Read 2 more answers

Which of the following statements are true? Select all that apply.

Tom [10]

Answer: The statements in options 2 and 4 are true.

Explanation:

The LCM of two numbers is the smallest number that is multiple of both numbers.

The factor of 8 and 12 are,

$8=2\times 2\times 2$

$12=2\times 2\times 3$

Since 2 and 2 are common in both but 2 and 3 are not same, therefore the L.C.M. of 8 and 12 is,

$L.C.M.(8,12)=2\times 2\times 2\times 3=24$

Therefore the statement in option 1 is incorrect.

The factor of 6 and 9 are,

$6=2\times 3$

$9=3\times 3$

Since 3 is common in both but 2 and 3 are not same, therefore the L.C.M. of 6 and 9 is,

$L.C.M.(6,9)=2\times 3\times 3=18$

Therefore the statement in option 2 is correct.

The factor of 11 and 4 are,

$11=1\times 11$

$4=2\times 2$

Since all factor are different, therefore the L.C.M. of 11 and 4 is,

$L.C.M.(11,4)=1\times 11\times 2\times 2=44$

Therefore the statement in option 3 is incorrect.

The factor of 9 and 10 are,

$9=1\times 9$

$10=2\times 5$

Since all factor are different, therefore the L.C.M. of 9 and 10 is,

$L.C.M.(9,10)=1\times 9\times 2\times 5=90$

Therefore the statement in option 4 is correct.

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3 years ago

Mitchell wants to run 6 miles in 5 days. How far must he run each day?

olga55 [171]

Answer:

he ran 1.2 miles day

Step-by-step explanation:

so if he only ran a mile a day it would be 5 miles leaving 1 mile left.

so think if the number 100 and find 1/5 of that or divide by 5 which is 20 so add decimals to the beginning so it would be .100 and .2 and 1.2×5=6

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3 years ago

Tenley wants to exercise at least 15 hours per week. She walks at a speed of three miles per hour and bikes at a speed of 10 mil

Oksi-84 [34.3K]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of hours spent on walking and let y represent the number of hours spent on biking.

Tenley wants to exercise at least 15 hours per week, therefore:

x + y ≥ 15 (1)

Tenley cover at least 90 miles total in her weekly workout, therefore:

3x + 10y ≥ 90 (2)

x ≤ 12, y ≤ 10 (3)

Plotting the above constraints using geogebra online graphing tool. The solution to the problem is:

(5, 10) , (12, 10), (12, 5.4), (8.57, 6.43)

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3 years ago