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3 years ago

HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

enyata [817]3 years ago

7 0

Answer:

Step-by-step explanation:

$-2\frac{1}{4}=\frac{-9}{4}\\\\-1\frac{1}{2}=\frac{-3}{2}\\\\$

-2 1/4 ÷ -1 1/2 =

$\frac{-9}{4}*\frac{-2}{3}=\frac{3}{2}*\frac{1}{1}\\\\=\frac{3}{2}\\\\=1\frac{1}{2}$

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How to simplify -3 (4×-5y-5×)

Phoenix [80]

-12x + 15y + 15x
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3 years ago

State weather the triangles are similar .If so write a similarity statement and the postulate theorem you used.The triangles are

emmasim [6.3K]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding interior angles are congruent

$\frac{OK}{ON}=\frac{OJ}{OM}$

substitute the values

$\frac{3}{4}=\frac{30}{40}$

$\frac{3}{4}=\frac{3}{4}$ -----> is true

Therefore

JK is parallel to MN

Triangles OMN and OJK are similar by AA Similarity Postulate ( The three interior angles are congruent)

Because

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3 years ago

30 Yuri has two plum trees, A and B. in his garden

telo118 [61]

Answer:

42kg

Step-by-step explanation:

We are given the amount of plums produced from Tree A. We simply need to find the amount produced by Tree B and add the two numbers up.

Step 1:

Tree B produces 10% more than Tree A, which produces 20kg of plums:

$B=\frac{110}{100} *\frac{20}{1} \\\\B=\frac{110}{5}=\\\\B=22$

Ok! Tree B produces 22kg of plums. Let us find the total amount of plums Yuri gets from both trees.

Step 2:

$Total=A+B\\\\Total=20+22\\\\Total=42$

Yuri gets 42 kg of plums from the trees.

I hope this helps! Let me know if you have any questions :)

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3 years ago

Tickets to a concert cost $2 for children and $5 for adults. If 630 people attended the concert and the ticket sales totaled $2,

sergeinik [125]

A) C + A = 630
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B) 2C + 5A = 2,910
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A) C + 550 = 630
Children's tickets = 80

8 0

3 years ago

Read 2 more answers

An elevator is supported by a cable and is moving downward through the elevator shaft at constant speed.

Nana76 [90]

Answer: D The upward tension force in the cable is equal to the downward force of gravity.

Step-by-step explanation:

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3 years ago