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2 years ago

Can someone help me with this

Mathematics

1 answer:

antiseptic1488 [7]2 years ago

4 0

Answer:

[9 - 2 = 7 x 4] = {28}

[ ] =expression { } answer

You might be interested in

Is 27 an exact divisor of 1161

amm1812

Yes, it goes into 1,161 exactly 43 times!

7 0

3 years ago

Do przygotowania ćwierć litra soku potrzebne są 4 marchewki. Ile marchewek potrzeba żeby otrzymać pół litra soku, litr soku, 2li

Alina [70]

Answer:

Part 1) 8 carrots

Part 2) 16 carrots

Part 3) 32 carrots

Part 4) 48 carrots

Step-by-step explanation:

<u><em>The question in English is</em></u>

4 carrots are needed to prepare a quarter liter of juice. How many carrots do you need to get half a liter of juice, a liter of juice, 2 liters of juice, 3 liters of juice

Part 1) How many carrots do you need to get half a liter of juice?

we know that

4 carrots are needed to prepare 1/4 liter of juice

using proportion

Find out how many carrots do you need to get 1/2 liter of juice

$\frac{4}{(1/4)}=\frac{x}{(1/2)}\\\\x=4(1/2)/(1/4)\\\\x=8\ carrots$

Part 2) How many carrots do you need to get a liter of juice?

we know that

4 carrots are needed to prepare 1/4 liter of juice

using proportion

Find out how many carrots do you need to get 1 liter of juice

$\frac{4}{(1/4)}=\frac{x}{1}\\\\x=4(1)/(1/4)\\\\x=16\ carrots$

Part 3) How many carrots do you need to get 2 liters of juice?

we know that

4 carrots are needed to prepare 1/4 liter of juice

using proportion

Find out how many carrots do you need to get 2 liters of juice

$\frac{4}{(1/4)}=\frac{x}{2}\\\\x=4(2)/(1/4)\\\\x=32\ carrots$

Part 4) How many carrots do you need to get 3 liters of juice?

we know that

4 carrots are needed to prepare 1/4 liter of juice

using proportion

Find out how many carrots do you need to get 3 liters of juice

$\frac{4}{(1/4)}=\frac{x}{3}\\\\x=4(3)/(1/4)\\\\x=48\ carrots$

4 0

3 years ago

Marlye asked students in her school whether they prefer scary movies or comedies. She found that 35 students prefer scary movies

xz_007 [3.2K]

Answer:

The answer is 35%

Step-by-step explanation:

If we add together 35 and 65 we get 100. This means altogether there are 100 kids in her school. Out of those 100 kids, 35 like scary movies. We can write this as the fraction 35/100. This is equivalent to 0.35 or 35%.

4 0

3 years ago

Read 2 more answers

What is the value of a in the equation 2a+1c = $1,850

Vinvika [58]

2a + c = 1850

2a + c (-c) = 1850 (-c)

2a = 1850 - c

2a/2 = (1850 - c)/2

a = 925 - (c/2)

hope this helps

5 0

3 years ago

Help needed desperately

Aneli [31]

Answer:

80° , 100°, 80°

Step-by-step explanation:

∠ 1 and ∠ 2 form a straight line and sum to 180° , then

2x + 40 + 2y + 40 = 180

2x + 2y + 80 = 180 ( subtract 80 from both sides )

2x + 2y = 100 → (1)

∠ 1 and ∠ 3 are vertical angles and are congruent , then

2x + 40 = x + 2y ( subtract x from both sides )

x + 40 = 2y ( subtract 40 from both sides )

x = 2y - 40 → (2)

Substitute x = 2y - 40 into (1)

2(2y - 40) + 2y = 100

4y - 80 + 2y = 100

6y - 80 = 100 ( add 80 to both sides )

6y = 180 ( divide both sides by 6 )

y = 30

Substitute y = 30 into (2)

x = 2(30) - 40 = 60 - 40 = 20

Thus x = 20 and y = 30

Then

∠ 1 = 2x + 40 = 2(20) + 40 = 40 + 40 = 80°

∠ 2 = 2y + 40 = 2(30) + 40 = 60 + 40 = 100°

∠3 = x + 2y = 20 + 2(30) = 20 + 60 = 80°

8 0

3 years ago