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KiRa [710]
3 years ago
9

Please help quickly

Mathematics
1 answer:
lutik1710 [3]3 years ago
4 0
The answer is 6 positive tiles.
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Solve x and y 3x-4y=18,9x-2y=12
Rudiy27

Answer:

3x-4y=18

1xy=18

xy=18 ans

4 0
3 years ago
Read 2 more answers
PLZ HELP!!!!!!
jek_recluse [69]

Answer:

A: 39.1304348% OR 39%

B: 33.3%

Step-by-step explanation:

Part A:

find the total amount of children: 90+20+80+40=230

90-20=50

i got this from taking away the amount that like watching tv and not reading so from this you know 50 of those 90 that like watching tv also like tv and reading.

80-40=40

(same explanation as 90-20=50)

then do 50 +40 which equals 90

now you need to turn it into a percentage.

90/230=

9/23

=39.1304348%

if you need round it, do so!

Part b:

40+20=60

20/60= 2/6

=1/3

=33.3%

8 0
3 years ago
Help plz:)))I’ll mark u Brainliest
Taya2010 [7]

Answer:

20 ft

Step-by-step explanation:

We know that the height of the object and the height of the shadow it casts are proportional. Therefore, if we let the length of the tree be x, we can set up the following proportion to solve for it:

\frac{5}{8}=\frac{x}{32}

Solving for x, we get:

\frac{5}{8}=\frac{x}{32}

8*x=5*32 (Cross-Products Property)

8x=160 (Simplify)

\frac{8x}{8}=\frac{160}{8} (Divide both sides of the equation by 8 to get rid of x's coefficient)

x=20 (Simplify)

Therefore, the tree is 20 ft tall. Hope this helps!

6 0
3 years ago
Complete the sentence. 60 minutes is 20% of minutes.
zloy xaker [14]

Answer:

300

Step-by-step explanation:

20÷2=10

60÷2=30

30x10=300

7 0
2 years ago
Scura makes sun block and their annual revenues depend on how much they sell. Let x be the quantity of 5 oz. bottles of sun bloc
harina [27]

Answer:

a) 50,000 bottles

b) x = 45

Step-by-step explanation:

We are given the following in the question:

The annual revenue of sun block depends on how much they sell.

Let x be the quantity of 5 oz. bottles of sun block that they make and sell each year measured in 1000 's of bottles.

For x = 10,

10,000 bottles were made and sell each year.

For x = 25,

25,000 bottles of sun block were made and sell each year.

a) x = 50

\text{Number of bottles} = 50\times 1000 = 50,000

Thus, 50,000 bottles of sun block does Scura make and sell.

b) Scura produces and sells 45000 bottles of sunblock

We have to find the value of x

x = \displaystyle\frac{\text{Number of bottles}}{1000} = \frac{45000}{1000} = 45

Thus, x = 45 if Scura produces and sells 45000 bottles of sunblock.

8 0
3 years ago
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