3 years ago

Plz help will mark brainliest algebra

Mathematics

1 answer:

Zinaida [17]3 years ago

6 0

Hmmm. I want to say... 28. Hope this helps :) Merry Christmas!

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Consider the algebraic expression --50 + 2a

lisabon 2012 [21]

Answer:

-45

Step-by-step explanation:

-50 + 2a represents the sum of the constant -50 and twice the value of the variable a.

If a = 2.5, then -50 + 2a has the value -50 + 2(2.5) = - 50 + 5 = -45.

8 0

4 years ago

A. Change the following fractions to mixed numbers.

qaws [65]

Answer:

A )

1 - $1\frac{4}{7}$

2 - $5\frac{3}{5}$

3 - $3\frac{1}{5}$

4 - $4\frac{1}{4}$

5 - $6\frac{3}{4}$

B )

1 - $\frac{1}{4}$

2 - $\frac{2}{3}$

3 - $\frac{1}{3}$

4 - $\frac{4}{25}$

5 - $\frac{5}{8}$

C )

1 - 1

2 - $\frac{3}{4}$

3 - 1

4 - $\frac{3}{4}$

5 - $\frac{7}{9}$

D )

1 - $\frac{5}{12}$

2 - $\frac{2}{3}$

3 - $\frac{1}{3}$

4 - $\frac{1}{2}$

5 - $\frac{5}{12}$

6 0

3 years ago

Write the expanded form 0.45 in this way using fractions and using decimals

Rudiy27

Answer:

0.4 + 0.05= 0.45

FRACTION FORM:

4/10+ 5/100= 0.45

Step-by-step explanation:

Hope this helps!! Tell me if I'm wrong! :)

6 0

3 years ago

Solve r = cs/d for c

Nady [450]

$r=\frac{cs}{d}\\\\\frac{cs}{d}=r\ \ \ \ |multiply\ both\ sides\ by\ d\\\\cs=dr\ \ \ \ \ \ |divide\ both\ sides\ by\ s\\\\\boxed{c=\frac{dr}{s}}$

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3 years ago

Using the following triangle, what is the secant of angle b?

grigory [225]

the third option

$\sec(b) = \frac{c}{b}$

sorry if the answer is wrong

8 0

3 years ago