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3 years ago

I'll mark you as the brainiest if you get this correct thx xxx This homework is due tomorrow thx for your help

Mathematics

2 answers:

scoray [572]3 years ago

5 0

Answer:

4 times

Step-by-step explanation:

450/30=15

50/15=3.3

round up to 4 times

Ierofanga [76]3 years ago

3 0

Step-by-step explanation:

Aight, lemme give it a shot

so ya got 50 boxes and each box weighs 30 kg

so in total ya go 50×30=1500kg weight

and on the other hand ya are allowed to carry the maximum of 450 kg

now check it

1500÷450=3.3

450×3=1320kg

the van can be full for three drives and

1500–1320=150kg

and it has to be driven to the shop with ⅓ of maximum weight only once

so it'll be 4 drives

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What is the unit price for trail mix if a 8 ounce bag cost $2.80.

german

Answer:

Step-by-step explanation:

2.80/8=.35 per ounce

6 0

3 years ago

Is 3(-4y) equivalent to 6-4y

Leokris [45]

3(-4y)=6-4y

-12y=6-4y

-8y=6

y=-3/4

So the two expressions are equivalent, if and only if y = -3/4.

5 0

3 years ago

HELP PLZZ will give brainliest <3

melisa1 [442]

Answer:

Step-by-step explanation:

First question:

You are given a side, a, and its opposite angle, A. You are also given side b. Use that in the law of sines and solve for the other angle, B.

$\dfrac{a}{\sin A} = \dfrac{b}{\sin B}$

$\dfrac{10}{\sin 30^\circ} = \dfrac{40}{\sin B}$

$\dfrac{1}{0.5} = \dfrac{4}{\sin B}$

$\sin B = 2$

The sine function can never equal 2, so there is no triangle in this case.

Answer: no triangle

Second question:

You are given a side, b, and its opposite angle, B. You are also given side c. Use that in the law of sines and solve for the other angle, C.

$\dfrac{b}{\sin B} = \dfrac{c}{\sin C}$

$\dfrac{10}{\sin 63^\circ} = \dfrac{}{\sin C}$

$\sin C = \dfrac{8.9\sin 63^\circ}{10}$

$C = \sin^{-1} \dfrac{8.9\sin 63^\circ}{10}$

$C \approx 52.5^\circ$

One triangle exists for sure. Now we see if there is a second one.

Now we look at the supplement of angle C.

m<C = 52.5°

supplement of angle C: m<C' = 180° - 52.5° = 127.5°

We add the measures of angles B and the supplement of angle C:

m<B + m<C' = 63° + 127.5° = 190.5°

Since the sum of the measures of these two angles is already more than 180°, the supplement of angle C cannot be an angle of the triangle.

Answer: one triangle

3 0

3 years ago

A painter is painting a rectangular wall that measures 20.5 ft by 16.4 ft. Each gallon can of paint covers 200 square feet. What

alekssr [168]

The painter needs at least two gallons of paint to cover the wall.

To get this answer, you first need to find the area of the wall; by multiplying 20.5 x 16.4. This will get you 336.2.

Then, you need to divide 336.2 by 200. This will get you approx. 1.6.

If it's asking for partial gallons as well, stop here. Your answer is 1.6.

If not, continue.

Unless you're including partial gallons, you can't get 1.6 gallons of paint, so you need to round up. This will be 2 gallons.

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2 years ago

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There is a markup of 40% on the original price of a fan. If the fan was sold for $42, what was its original price

Akimi4 [234]

Answer: 21$ that is the answer

Step-by-step explanation:

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3 years ago