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Pepsi [2]
3 years ago
9

Help with 4 questions please

Mathematics
2 answers:
mr_godi [17]3 years ago
3 0

Answer:

Step-by-step explanation:

-1+x/3= -7

-3+x=-21. Multiply both sides by 3

X=-21 + 3

X= -18

12345 [234]3 years ago
3 0
17) x=-18
19) x=7
21) x=7
23) n=8
The answer are definitely correct. I'm not gonna trick you.

Hope I can help you!
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The cylinder is 20cm high and radius of its circular face is 3cm What is the total perimeter and area of the whole net?
trasher [3.6K]

Answer: 52\ cm,\ 176.55\ cm^2

Step-by-step explanation:

Given

The cylinder is 20 cm high

The radius of the cylinder is r=3\ cm

The total area of the figure is the sum of the rectangle and two circles

\Rightarrow \text{Perimeter P=}2[h+2r]\\\Rightarrow P=2[20+6]\\\Rightarrow P=52\ cm

The total area of the figure is

\Rightarrow \text{Area A=}h\times 2r+2\pi r^2\\\Rightarrow A=20\times 6+2\times \pi \times 3^2\\\Rightarrow A=120+18\pi\\\Rightarrow A=176.55\ cm^2

3 0
3 years ago
Please help I'll give brainiest
Komok [63]
For the first is 3864
The second is 1320
A=3.14(which is pie) x 20.5^2
A=420x pie
A=1320
For the third is 2544
3864-1320=2544
Sorry if this is wrong too.
8 0
2 years ago
Read 2 more answers
Homemade applesauce is one of Jared's favorite foods, so he stocked up on 10 pounds of
Vanyuwa [196]

Answer:

<h2>5 quarts</h2>

Step-by-step explanation:

Let's think through this bit by bit.

<em>10 lbs * 16 oz/lb = 160 oz. of apples.</em>

In the proportion below, we can see we simply divide by 8, in terms of magnitude.

8 oz -> 1 cup

160 oz -> 160/8 -> 20 cup

20 cups! Is it the answer? NO! They're asking for it in units of <em>quarts, not cups.</em>

We must remember that 1 quart = 4 cups.

20 cups * 1/4 qt/cups = 5 quarts

8 0
3 years ago
emilio build and sells homemade wooden toy for $12 each the festival he is attending charges $50 to set up his Booth how much mo
Salsk061 [2.6K]

Emilio will earn $334.

12*32=384 --> amount of money he earns from selling

384-50 --> subtract the amount the festival charges

=334 --> final profit


<u>Please mark this answer as the Brainliest if it helped! Thank you.</u>

3 0
3 years ago
Read 2 more answers
James practiced Piano for 48 Minutes. Alisa practiced 5 times long as James. How many Minutes did Alisa Practice? how many minut
ANEK [815]

Answer:

Alisa practiced for 240 minutes (4 hours). In total, they practiced for 288 minutes (4.8 hours).

Step-by-step explanation:

If James practiced for 48, and Alisa practiced 5 times as long, then we would multiply 48 by 5 (240 minutes).

If we want to find how many minutes in total they practiced, then we would add 240 minutes (Alisa's practice time) and 48 minutes (James' practice time) together, which would equal 288 minutes (4.8 hours).

Equation: y=48+x

3 0
3 years ago
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