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3 years ago

PLS HELP ME ASAP FOR ALL 4! (SHOW WORK!!) + LOTS OF POINTS!! :)

Mathematics

2 answers:

frez [133]3 years ago

6 0

1 is B this should help

butalik [34]3 years ago

5 0

80n+20; You wanna know?
Well, since you only have to pay for every night and not everyday for the dog, 'a' is the correct answer.

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How many solutions does the following equation have?<br> -7x-10-15x=-22x+83

Vlada [557]

Answer:

-22x-10=-22x+83

=-22x-10=-22x+83

=-10=83

x€⊙

4 0

3 years ago

Can I have help and pls don't answer if you don't know

sergij07 [2.7K]

Answer:

I think its A

Step-by-step explanation:

7 0

3 years ago

Find the value of angle "A" and angle "B"

saul85 [17]

Answer:

31 degrees

Step-by-step explanation:

Not sure where angle B is, but

90-59= 31

3 0

3 years ago

Read 2 more answers

olga nikolaevna [1]

Answer:

Fraction of the original board left = $\frac{2}{15}$

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off $\frac{1}{5}$ of a wooden board.

Length of the board left = l - $(\frac{1}{5})l$

= $(\frac{4}{5})l$ feet

He saws off $\frac{3}{4}th$ of the remaining board,

Board left = $(\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]$

= $\frac{4}{5}l-\frac{3}{5}l$

= $\frac{1}{5}l$ feet

He finally saws off $\frac{1}{3}$ rd of the remaining board.

Board left = $\frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l$

= $(\frac{1}{5}-\frac{1}{15})l$

= $\frac{2}{15}l$ feet

Fraction of the original board left = $\frac{\frac{2}{15}l}{l}$

= $\frac{2}{15}$

6 0

3 years ago

a cell phone company is giving a 20℅ discount on all phone accessories which expression can used to find the sale price of an it

Sholpan [36]

Answer:

The expression that can be used is 0.80x

Step-by-step explanation:

Let

x ----> original price of an item

Remember that

$100\%-20\%=80\%$

That means---> the sale price is 80% of the original price

To find out the sale price, determine the 80% of the original price

$80\%=80/100=0.80$ ----> percentage in decimal form

Multiply the original price by the percentage in decimal form to obtain the sale price

$0.80x$

6 0

3 years ago