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3 years ago

Help on this math question please explain how you got the answer

Mathematics

1 answer:

Julli [10]3 years ago

6 0

Answer:

Store C has the lowest price of $7.00

Step-by-step explanation:

Store A's sale gets you 15% off the shoes. 15% of 35 is $25.50

Store B's sale gets you $5.00 off the shoes. $35.00 - $5.00 = $30.00

Store C's sale gets you 1/5 off the shoes. 1/5 of $35.00 is $7.00

That means that the only true statement is the Store C's shoes are $7.00

Hope this helps you for next time you get a problem like this.

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21 POINTS!<br>Jeff had $20. He spent 3/8 of his money on lunch. How much money does jeff have left?

lara [203]

Answer:

$12.50

Step-by-step explanation:

3/8 x 20/1 = 7.5

20 - 7.5 = 12.50

4 0

3 years ago

W+8= -3<br> Solve for w I need help

tresset_1 [31]

Answer:

$w=-11$

Step-by-step explanation:

$w+8=-3\\\\w+8-8=-3-8\\\\\boxed{w=-11}$

Hope this helps.

5 0

3 years ago

Please help me with my question!!

vesna_86 [32]

Answer:

Step-by-step explanation:

Equation:

$\frac{x}{-2}+\frac{y}{10}=1\\\\\frac{x*5}{-2*5}+\frac{y}{10}=1\\\\\frac{-5x}{10}+\frac{y}{10}=1\\\\-5x+y=10\\\\y=5x+10$

3 0

4 years ago

The cost of a circular table is directly proportional to the square of the radius. A circular table with a radius of 50cm costs

Lana71 [14]

Answer:

£135 is the correct answer.

Step-by-step explanation:

Let C be the cost of table.

And let R be the radius of table.

Cost of table is directly proportional to square of radius.

As per question statement:

$C\propto R^{2}$ or

$C=a\times R^2 ....... (1)$

where $a$ is the constant to remove the $\propto sign$ .

It is given that

$C_1 =$ £60 and $R_1 = 50\ cm$

$C_2 = ?$ when $R_2= 75\ cm$

Putting the values of $C_1$ and $R_1$ in equation (1):

$60=a \times 50^2 ....... (2)$

Putting the values of $C_2$ and $R_2$ in equation (1):

$C_2=a \times 75^2 ....... (3)$

Dividing equation (2) by (3):

$\dfrac{60}{C_2}= \dfrac{a \times 50^2}{a \times 75^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{50^2}{75^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{2^2}{3^2}\\\Rightarrow \dfrac{60}{C_2}= \dfrac{4}{9}\\\Rightarrow C_2 = 15 \times 9 \\\Rightarrow C_2 = 135$

So, <em>£135 is the correct answer</em>.

7 0

3 years ago

And show work and please very much appreciate it

Marat540 [252]

Add them together and then you would get the answer

6 0

3 years ago