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Zinaida [17]
2 years ago
7

HELP ME PLEASE WILL NAME BRAINLIEST PLEASE PLEASE Select all that apply

Mathematics
1 answer:
Paha777 [63]2 years ago
8 0

hope that it helps you

Step-by-step explanation:

GJ is an angle bisector

G Is the vertex of a pair of congruent angles in the diagram

J is the midpoint of a segment in the diagram

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Jenna can clean the gutters at her house in four hours. Her older brother, John, can clean the gutters in three hours, if they w
OlgaM077 [116]

Answer:

1 hour and 42.8 minutes

Step-by-step explanation:

To answer this question let's call t_1 while it takes Jenna to clean the gutters

Let's call t_2 while it takes John to clean the gutters

t_1 = 4 h

t_2 = 3 h

t = total time

g = job = 1 (clean the gutters)

The speed of each one is:

V_1 = \frac{1}{4} g/ h

V_2 = \frac{1}{3} g/h

V = V_1 + V_2 = \frac{g}{t} = \frac{1}{t}

So:

V = V_1 + V_2 = \frac{1}{4} +\frac{1}{3}

\frac{1}{t} = \frac{1}{4} + \frac{1}{3}= \frac{7}{12} g/h

t = \frac{12}{7} h

Then, both together paint \frac{7}{12} of gutters for each hour.

This means that it takes \frac{12}{7}  hours to clean the gutters together

Finally cleaning together takes 1,714 hours or also

1 hour and 42.8 minutes

7 0
3 years ago
A sewing machine can sew 500 stitches in 2/3 min.<br><br> Complete the unit rate.
Nesterboy [21]
500 stiches/2/3 min = 750 stiches per minute
7 0
3 years ago
Read 2 more answers
The graph shows how many cans of each type of cat food were sold one day. (View picture)
sleet_krkn [62]
It's very easy!
.
First of all, add up all the amounts of all can flavors.
.
What do you think it approximates to?
.
I'd say 245.
.
Now, how much is 30 out of 245?
.
Around 24%.
.
So, what's 245/100? (100 because it is default maximum percentage number)
<span>.  
</span>2.45.
.
24 divided by 2.45?
.
Around 9%.
.
Your best guess is 10% or D.
3 0
3 years ago
Let n be equal to 182% of 60. Which of the following proportions is true? A. B. C. D.
Olenka [21]

Answer:

A. n is 60% of 182

B.n is 82% of 120

C. n is 9.1/5 of 60

D.n is 41/10 of 120

Step-by-step explanation:

thinking proportions not percentage

8 0
3 years ago
Given: △ABC, BC&gt;AC, D∈ AC , CD=CB Prove: m∠ABD is acute
Aleksandr [31]

Answer:

Step-by-step explanation:

Given: △ABC, BC>AC, D∈ AC , CD=CB

To prove: m∠ABD is acute

Proof: In ΔABC, the angle opposite to side BC is ∠BAC and  the angle opposite to side  AC is ∠ABC.

Now, it is given that  BC>AC, then ∠BAC>∠ABC..                       (1)

In ΔBDC, using the exterior angle property,

∠ADB=∠DBC+∠BCD

∠ADB=∠DBC+∠BCA

⇒∠ADB>∠BAC                            (2)

From equation (1) and (2), we get

∠ADB>∠BAC

⇒∠ADB>∠ABC

⇒DB>AB

Hence,    m∠ABD is acute            

4 0
3 years ago
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