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2 years ago

Jacob bought a magazine for $2.80 and three candy bars. Write an expression for how much Jacob paid.

Mathematics

1 answer:

harkovskaia [24]2 years ago

4 0

Answer:

total = 2.8 + 3x

x is the price of the candy bars

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a textbook company ships its books in boxes that can hold 30 pounds. one particular order calls for a shipment of 800 books. if

Pachacha [2.7K]

83 boxes are required to carry 800 books.

According to the question:

One Box can hold weight = 30 pounds

We know that , 1 pound= 0.45 kg

hence, 30 pounds = 30 x 0.45 = 13.5kg

hence, one box can carry 13.5 kg of weight.

Now,

Weight of 1 book = 1.4 kg

So, Total Weight of 800 books= 1.4 x 800 kg

And , No. of boxes required to carry 800 books = (1.4 x 800)/13.5 = 82.96

or approximately 83 boxes

Hence, 83 boxes are required to carry 800 books.

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1 year ago

Good science requires that you record your observations accurately.<br><br><br><br> TrueFalse

enyata [817]

Answer:

True.

Step-by-step explanation:

6 0

2 years ago

(X-7)(3x+2) need answer!!

grin007 [14]

Answer: the answer is

=3 $x^{2}$ −19x−14

Step-by-step explanation: (x−7)(3x+2)

=(x+−7)(3x+2)

=(x)(3x)+(x)(2)+(−7)(3x)+(−7)(2)

=3x2+2x−21x−14

=3x2−19x−14

7 0

3 years ago

During summer vacation, Tori read, on average, 40 pages per night. Now that she has returned to school, she is averaging 5% fewe

STatiana [176]

Answer: 38 pages per night

Step-by-step explanation:

Tori used to read an average of 40 pages per night but now she is going at a rate that is 5% slower.

To find the number of pages she is reading now, first find 5% of 40 pages:

= 5% * 40

= 2

Then subtract this figure from 40:

= 40 - 2

= 38 pages per night

<em>By deducting 5% from the reading quantity, the person is reading at 5% less. </em>

8 0

2 years ago

What is the equation of the directrix of the parabola given by the equation y2 = -24x?

erma4kov [3.2K]

The equation of the directrix of the parabola given is x = 6, Option D is the correct answer.

<h3>What is Directrix of a Parabola ?</h3>

A parabola is a U shaped curve whose all point are at same distnace from a point called as focus and a line called as Directrix .

The equation of the parabola given is

y² = -24x

When the standard equation of parabola is

(y - k)² = 4p (x - h),

where the focus is (h + p, k) and the directrix is x = h - p.

here h = 0

p = -24/4 = -6

x = 0 - (-6)

x = 6

Therefore Option D is the correct answer.

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1 year ago