Helpppppp meee please

Mathematics

2 answers:

a_sh-v [17]2 years ago

7 0

Answer:

a) $14.45 b) 1.45x+1.2y

Step-by-step explanation:

5*1.45+6*1.2=14.45

Volgvan2 years ago

4 0

Answer:

7.25 and 7.20

Step-by-step explanation:

I calculated and got it correct

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Please add explanation as well.

Marianna [84]

It is the first one. Three times a number means 3x. The sum of 3x and 7 is 3x + 7 because sum means additions. And 3x + 7 is greater than four times the number which is 4x and greater than is this symbol >. So 3x + 7 > 4x

3 0

3 years ago

Using the numbers 8, 6, 4 write an expression that equals 7

8090 [49]

$\dfrac{8-4}{4}+6=\dfrac{4}{4}+6=1+6=7$

$8-\dfrac{8-6}{6-4}=8-\dfrac{2}{2}=8-1=7$

$\dfrac{8+6}{6-4}=\dfrac{14}{2}=7$

4 0

3 years ago

Melanie has a piece of cloth 12 and 1/3 yards long. How many 3/4 yard-long pieces can be cut from the cloth?

Harrizon [31]

This is a division problem. First, get 12 1/3 into fraction form instead of mixed number form to make your life easier;
$12 \frac{1}{3} = \frac{36}{3} + \frac{1}{3} = \frac{37}{3} 
$
Now, divide the two fractions. Since this is fraction division, the reciprocal is flipped and the two fractions multiplied.
$\frac{37}{3} * \frac{4}{3} = \frac{148}{9} = 16 \frac{4}{9} 
$
The answer from the fraction division is 16 and four-ninths, but because you need a whole number as an answer,
the answer is 16 pieces.

8 0

3 years ago

Read 2 more answers

Last one: which expression is equivalent?

Lady_Fox [76]

It is b 4/3+2/3 is 6/3 and 6/3 divided by 1/3 is 2/3x

5 0

2 years ago

A system of equations is shown below. Find the solution by using substitution.

ASHA 777 [7]

Answer:

a) $(-2, 0)$