All categories

3 years ago

Can someone help me with number 33 please

Mathematics

1 answer:

PIT_PIT [208]3 years ago

8 0

2m + 15(m - 1) = 20(m - 3)

2m + 15m - 15= 20m - 60

17m - 15 = 20m - 60

-3m = -45

m = 15

You might be interested in

Solve the equation. X+3.5 = 10 A.X = 13.5 B. X = 7.5 C. X = 6.5 D. X = 30.5

Juliette [100K]

Answer:

the answer is C

Step-by-step explanation:

its making write more so yeah

6 0

3 years ago

Read 2 more answers

Solve : 4² ( 4³ ) with work shown

stepan [7]

Answer:

1024

Step-by-step explanation:

4²(4³)

4×4(4×4×4)

16(16×4)

16(64)

16×64

=1024

7 0

3 years ago

Barney ate 21 M&M's. If he ate 15% of the bag of M&M's, how many were in the bag to start?

natali 33 [55]

Answer:

3.15

i just used the calculater :)

8 0

3 years ago

Read 2 more answers

Question in picture A) 16/63 B)-16/63 C) 63/16 D) -63/16

Orlov [11]

ANSWER
$\tan(x + y) = - \frac{63}{16}$

EXPLANATION

We were given that,

$\csc(x) = \frac{5}{3}$

This implies that,

$\sin(x) = \frac{3}{5}$

We use the Pythagorean identity

$\sin^{2} (x) + \cos^{2} (x)= 1$
to get,

$\cos(x) = \sqrt{1 - ( { \frac{3}{5} })^{2}} = \frac{4}{5}$

We were also given that,

$\cos(y) = \frac{5}{13}$

This means that,

$\sin(y) = \sqrt{1 - {( \frac{5}{13}) }^{2} } = \frac{12}{13}$

This is because,

$0 < \: x \: < \frac{\pi}{2}$

$0 < \: y \: < \frac{\pi}{2}$

This angles are in the first quadrant so we pick the positive values.

$\tan(x + y) = \frac{ \sin(x + y) }{ \cos(x + y) }$

$\tan(x + y) = \frac{ \sin(x ) \cos(y) + \sin(y) \cos(x) }{ \cos(x) \cos(y) - \sin(x) \sin(y) }$

$\tan(x + y) = \frac{ \frac{3}{5} \times \frac{5}{13} + \frac{12}{13} \times \frac{4}{5} }{ \frac{4}{5} \times \frac{5}{13} - \frac{3}{5} \times \frac{12}{13} }$

$\tan(x + y) = - \frac{63}{16}$

The correct answer is D

4 0

3 years ago

Jane has 15 coins in total of $2.18. She has 5 more quarters than nickels, has 3 pennies and dimes. How many quarters, nickels,

fredd [130]

She has 7 quarters two nickels and 3 dimes

8 0

3 years ago