3 years ago

PLEASE HELP ME ASAP ITS A EXAM

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

6 0

The first one should be the third option and the second one should be the first one.

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Find the indicated length. find LM

Roman55 [17]

The overall length is given as 22.

The line is split into 2 parts X and 3X.

So we have X + 3X = 22

Add X and #X to get 4X:

4X = 22

Divide both sides by 4 to get X:

X = 22 /4

X = 5.5

Now we know what X is so now replace x with 5.5 and solve for LM:

LM = 3X = 3*5.5 = 16.5

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4 years ago

The first gardener can finish the job in 6 hours, and the second gardener can do the same job in 7 hours. How long it will take

marissa [1.9K]

If the first gardener can finish the job in 6 hours, it means that every hour he completes 1/6 of the job.

By the same logic, the second gardener completes 1/7 of the job per hour.

So, if they work together, they complete

$\dfrac{1}{6}+\dfrac{1}{7}=\dfrac{7+6}{42}=\dfrac{13}{42}$

of the job per hour.

So, after 42/13 of a hour, they'll complete the job. Since one hour is made of 60 minutes, 42/13 of a hour is

$\dfrac{42}{13}\cdot 60 \approx 194$

So, it will take them about 194 minutes to finish the job, i.e. about 3 hours and 14 minutes.

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3 years ago

Solve the inequality 47.75 + x < 50 to determine how much more weight can be added to Li's suitcase without going

ehidna [41]

Answer:

Answer Choice A

Step-by-step explanation:

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3 years ago

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A triangle shaped paper’s height is 18 cm and width is 10 cm. Find the hypotenuse of the paper.

vodomira [7]

The hypotenuse is 20.59. 10^2+18^2=C^2

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3 years ago

A 4 sided polygon has 2 congruent sides and the non congruent sides are parallel. What is the most accurate name of the polygon?

Harlamova29_29 [7]

Answer:

Trapezoid

Step-by-step explanation:

So there's four sides on a trapezoid. The top and bottom ones are parallel. But they're not congruent. I don't think... Anyway, good luck.

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3 years ago

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