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2 years ago

I really need help and there is more but it will only let me attach 5 ugh plz help

Mathematics

1 answer:

RSB [31]2 years ago

5 0

Answer:

1.) Multiply the number of pounds by 4 to find total cost.

2.) 280 miles

3.) Multiply 40

4.) Multiply 12 each time: 56*12 = 672

5.) This is the same question as in picture 4

Hope this helps!

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A box contains 5 plain pencils and 7 pens. A second box contains 5 color pencils and 5 crayons. One item from each box is chosen

juin [17]

Answer:

5/12 first pack

5/10 second pack

8 0

3 years ago

F= 8/5 (c) + 40 when c=5

Molodets [167]

Answer:

F = 48

Step-by-step explanation:

F= 8/5 (c) + 40

Let c=5

F = 8/5 * 5 +40

= 8 + 40

= 48

6 0

3 years ago

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Algebraic expression 6 times a number,n

trasher [3.6K]

6 times a number n is 6n.

In algebra, when number multiply with variables, you don't need a multiplication sign (x). You just put them together like 6n (instead of 6 x n).

Happy to Help!

6 0

2 years ago

four families go to the cinema. the reid family take 2 adults and 2 children for £18 ; the mghee family take 1 senior, 2 adults

RoseWind [281]

Answer:

$\pounds 26.50$

Step-by-step explanation:

Let

x = cost for one adult

y = cost for one child

z = cost for one senior.

The Reid family:

take 2 adults and 2 children and paid $2x+2y$ that is $\pounds 18$ , so

$2x+2y=18$

The Mghee family:

take 1 senior, 2 adults and 1 child and paid $x+2x+y$ that is $\pounds 18.50$ , so

$x+2x+y=18.50$

The Griffiths family:

take 1 senior and 3 adults and paid $z+3x$ that is $\pounds 19.50$ , so

$z+3x=19.50$

You get the system of three equations:

$\left\{\begin{array}{l}2x+2y=18\\ \\z+2x+y=18.50\\ \\z+3x=19.50\end{array}\right.$

From the first equation:

$2y=18-2x\\ \\y=9-x$

From the third equation:

$z=19.50-3x$

Substitute them into the second equation:

$19.50-3x+2x+9-x=18.50\\ \\-3x+2x-x=18.50-19.50-9\\ \\-2x=-10\\ \\2x=10\\ \\x=5$

Then

$y=9-5=4\\ \\z=19.50-3\cdot 5=19.50-15=4.50$

Hence,

the cost for one adult is $\pounds 5$

the cost for one child is $\pounds 4$

the cost for one senior is $\pounds 4.50$

The Linton family takes 1 senior, 2 adults and 3 children and paid

$\pounds 4.50+2\cdot \pounds 5+3\cdot \pounds 4=\pounds 26.50$

3 0

3 years ago

Divide.

liubo4ka [24]

Answer:

14.0328

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers