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AnnZ [28]
3 years ago
14

Help me find the scale factor please!!

Mathematics
2 answers:
Mrrafil [7]3 years ago
5 0

Answer:

the scale factor is 2/3

Step-by-step explanation:

to find the scale factor plug in values to \frac{new}{old}

the new figure is the one in which the scale factor is applied to, and the old is the original figure

so for new take any side from the dilated figure, I will pick HI, the size is 4

for old use what is congruent to HI, so OL, which is 6

plug this into your fraction and you get 4/6

this simplifies to 2/3

Oliga [24]3 years ago
4 0

Answer:1.5 i think

Step-by-step explanation:

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antiseptic1488 [7]
Going upstream: 432 km / 6 hours = 72 km/h
Going downstream: 384 km / 4 hours = 96 km/h
Going upstream against the current means that the effective speed is:
r_boat - r_current = 72
Meanwhile, going downstream with the current means;
r_boat + r_current = 96
Adding both equations (to cancel out r_current) gives:
2r_boat = 72 + 96
r_boat = 84 km/h
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6 0
3 years ago
What is the value of x?<br><br><br><br> Enter your answer in the box.
hichkok12 [17]

Answer:

x = 25

Step-by-step explanation:

<em>Step 1: Identify the similar triangles</em>

Triangle DQC and triangle DBR are similar

<em>Step 2: Identify the parallel lines</em>

QC is parallel to BR

<em>Step 3: Find x</em>

DQ/QB = DC/CR

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x = 25

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8 0
3 years ago
Read 2 more answers
How do you solve number 27 and 28
Elanso [62]

27) if a = 1/a

multiply both sides by a

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28)

6 x 75 = 450

7 x 80  = 560

8 x 85 = 680

9 x 90 = 810

Total all students in class = 6 + 7 + 8 + 9 = 30 students

Total score of whole class:

450 + 560 + 680 + 810 = 2500

Average = 2500 /30 = 83.3 = 83 1/3

Answer is C) 83 1/3

8 0
3 years ago
Taylor cuts 1/3 sheet of construction paper for an arts and crafts project.
KonstantinChe [14]
We need more info like a) this b) or this stuff like that
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3 years ago
Aluminium has a density of 2.7g/cc .The density of 15cc<br> of Aluminium is
zysi [14]

Answer:

Step-by-step explanation:

Density = mass/volume.

Therefore.

2.7g/cc = x/15cc

x = 2.7x 15

x = 40.5g.

4 0
3 years ago
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