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2 years ago

LINKS AND RIDICULOUS ANSWERS WILL BE REPORTED! CORRECT ANSWER WILL BE MARKED BRAINLIEST

Mathematics

1 answer:

asambeis [7]2 years ago

4 0

Answer:

6.7 minutes

Step-by-step explanation:

117 miles per hour

117/60 = 1.95 (this is how fast he travels per minute)

13/1.95 = 6.66666666667 minutes which is

= 6.7 to the nearest tenth.

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To mix plaster for a dental model, 35 mL of water is used for 100g of plaster. How many mL of water should be used for 250g of p

laila [671]

Okay, here we have this:

Considering the provided information, we are going to calculate the requested value, so we obtain the following rule of three:

$\begin{gathered} \frac{x}{35mL\text{ of water}}=\frac{250g\text{ of plaster}}{100g\text{ of plaster}} \\ x=\frac{250g\text{ of plaster}}{100g\text{ of plaster}}\cdot35mL\text{ of water} \end{gathered}$

Solving for x:

$\begin{gathered} x=2.5\cdot35mL\text{ of water} \\ x=87.5mL\text{ of water} \end{gathered}$

Finally we obtain that 87.5mL of water should be used for 250g of plaster.

3 0

6 months ago

PLESE HELP ILL GIVE BRAINLIEST!,!!!!!

Bogdan [553]

Answer:

9.8x + 1.1y + 9.9z

Step-by-step explanation:

$\textsf {The perimeter is the sum of the side lengths.}$

$\textsf {Hence, the perimeter is :}$

⇒ 5.5x + 6.2y + 4.3x + 8.3z + 1.6z - 5.1y

⇒ 9.8x + 1.1y + 9.9z

5 0

2 years ago

Read 2 more answers

Need some math help!

krok68 [10]

This is a right triangle, the measure of angle A is 90 degrees.

First thing to do I guess is finding B and C.

tan^-1 (7/12) = 30 degrees

tan^-1 (12/7) = 60 degrees

60 + 30 = 90

180 - 90 = 90. Therefore angle A = 90 degrees

5 0

3 years ago

Read 2 more answers

No clue what to do. show all steps too please. thanks. HELP DUE NOW!!!

dangina [55]

An isosceles triangle has two equal sides.
a= one equal side
b=base

b+2a=35
a=b+4
b+ 2(b+4)=35
b+2b+8=35
3b+8=35
3b=27
b=9
a=13

4 0

3 years ago

A 27-foot pole casts a 25-foot shadow. At the same time, a nearby tower casts a 45-foot shadow. How tall is the tower?

abruzzese [7]

Answer:

The answer to your question is: 48.6 ft

Step-by-step explanation:

See the picture below

Use the Thales's theorem to solve this exercise

x / 27 = 45 / 25

x = 45(27) / 25

x = 1215 / 25

x = 48.6 ft

8 0

2 years ago