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Sati [7]
3 years ago
9

[Will award brainliest if correct!] It takes a painter and his friend 8 hours to paint a room. if the painter was working alone,

it would take him 12 hours less than if his friend was working alone. How long does it take the painter to paint the room by himself?
Mathematics
1 answer:
Keith_Richards [23]3 years ago
5 0

Answer:

it would take him 10 hours

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1. The sides of a triangle are in the ratio 3:4:5 What is the length of each side if the perimeter
Nataly_w [17]

Answer:

22.5 cm, 30 cm, 37.5 cm

Step-by-step explanation:

Sum the parts of the ratio, 3 + 4 + 5 = 12 parts

Divide the perimeter by 12 to find the value of one part of the ratio.

90 cm ÷ 12 = 7.5 cm ← value of 1 part of the ratio, thus

3 parts = 3 × 7.5 cm = 22.5 cm

4 parts = 4 × 7.5 cm = 30 cm

5 parts = 5 × 7.5 cm = 37.5 cm

The 3 sides are 22.5 cm, 30 cm and 37.5 cm

7 0
4 years ago
Please answer quickly, more might be coming soon. 50 Points!
Brut [27]

Answer:

2) ∠SDH and ∠SDT are right angles because SD ⊥ HT.

3) \bar{SH}\cong \bar{ST} as it is given in the question.

4) \bar{SD}\cong \bar{SD}  is the reflexive property.

5) ΔSHD ≅ ΔSTD by RHS congruency.

Step-by-step explanation:

Given in the question:

\bar{SH}\cong \bar{ST}\\\bar{SD}\perp \bar{HT}

In ΔSHD and ΔSTD

\bar{SH}\cong \bar{ST}   (Given)

\angle SDH\cong \angle SDT=90^o    (SD ⊥ HT)

\bar{SD}\cong \bar{SD} (Common)

Therefore, \Delta SHD\cong \Delta STD   (By RHS rule)

Reflexive property of congruency is defined as the property in which something is equal to itself. Hence, the reflexive property of these two triangles is \bar{SD}\cong \bar{SD}

5 0
3 years ago
What is the place value relationship of the 9's in 299
eimsori [14]
Ones and tens thats the anwers

8 0
4 years ago
Read 2 more answers
A shark weighs 405 kg and 68 grams a second shark weighs 324 kg and 75 g how much more does the first shark weigh in grams than
mariarad [96]

For this case we have to by definition:

1 kg equals 1000 grams

Shark 1:

405 kg and 68 grams

405 kg * \frac {1000 g} {1kg} = 405,000 grams

Thus, shark 1 weighs 405,068 grams.

Shark 2:

324 kg and 75 grams

324 kg * \frac {1000 g} {1 kg} = 324,000 grams

Thus, shark 2 weighs 324,075 grams.

Subtracting we have:

405.068 grams-324.075 grams = 80.993 grams

Thus, shark 1 weighs 80,993 grams more than the second.

Answer:

Shark 1 weighs 80,993 grams more than the second.

8 0
3 years ago
Please help<br> Me I need this
MaRussiya [10]

Answer:

20x^50

Step-by-step explanation:

4 0
4 years ago
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