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3 years ago

13

Mr.Johnson has 124 English essays to grade. He determines that he can grade 8 per day. How many days will it take Mr.Johnson t g

rade all of the English essays..

1 answer:

matrenka [14]3 years ago

8 0

Answer:

16 days or 15.5 I'm not sure what if the question wants exact answer or rounded to how many full days it will take

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I'm not really good at math, but i would appreciate it if i can get some help with this math problem. 2y^3-4x^2-4-1+3x^2-3y^3-y^

SOVA2 [1]

Answer:

-2y^2 -x^2 -5

Step-by-step explanation:

Just simplify everything. I recomend putting them in seperate groups. By exponent. Don't forget the signs, they are very important.

3 0

3 years ago

Marion bought 14 packages of plastic frog and lizard fishing lures. She bought frog lures in packages of 4 and lizard lures in p

tatuchka [14]

Answer:

Marion bought 6 frog lures and 8 lizard fishing lures.

Step-by-step explanation:

Let $f$ represent frog lures and $l$ represent lizard lures.

The total packages Marion bought is

$f+l=14...eqn1$

If she bought frog lures in packages of 4 and lizard lures in packages of 6 for a total of 72 lures, then

$4f+6l=72...eqn2$

We make $f$ the subject in equation 1 and put it into equation 2 to get;

$f=14-l...eqn3$

We put equation 3 into equation 2 to get;

$4(14-l)+6l=72$

$\Righttarrow 2(14-l)+3l=36$

We expand the bracket to get;

$28-2l+3l=36$

$-2l+3l=36-28$

$l=8$

We put $l=8$ into equation 3 to get;

$f=14-8$

$f=6$

Therefore Marion bought 6 frog lures and 8 lizard fishing lures.

6 0

3 years ago

Find the value of x. Leave answers if necessary in the simplest radical form.

shtirl [24]

Answer:

<h2>x = 10√3</h2>

<u>Step-by-step explanation:</u>

cos 45° = base / hypotenuse

1/√2 = base / 15√2

15√2 = base√2

Base, = 15

sin 60° = perpendicular / hypotenuse

hypotenuse = x

√3/2 = 15 / x

x √3 = 30

x = 30 / √3

x = 10√3

6 0

3 years ago

Read 2 more answers

0.62 as a percent <br> (STEP BY STEP)

jolli1 [7]

Answer:

0.62 = 0.62 × 100/100 = (0.62 × 100)/100 = 62/100 = 62%;

In other words:

1) Multiply that number by 100.

2) Add the percent sign % to it.

3 0

3 years ago

Read 2 more answers

Find the length of ac

maksim [4K]

Answer:

$\boxed{AC = 42.99}$

Step-by-step explanation:

Tan 34 = $\frac{opposite}{adjacent}$

Where opposite = 29, adjacent = AC

So,

0.674 = $\frac{29}{AC}$

AC = $\frac{29}{0.674}$

AC = 42.99

8 0

3 years ago