All categories

3 years ago

HELP! 15 POINTS AND BRAINLIEST!

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

7 0

Answer:

8x squared 3

Step-by-step explanation:

hope this helps hope you get it right answer is d

Artyom0805 [142]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

A little help please!!

Bumek [7]

Answer:

x=4 y=1

x=4 y=4

Step-by-step explanation:

x=4 goes on plot 4

(4,f(4)) plot goes on 4 x, 4 and y, 4

hope this helps

4 0

3 years ago

Keith receives $25000 salary for working as a account. If keith spends 40% of his salary on expenses each year, then how much mo

Scrat [10]

Answer:

$25000 * 40% = 100.000

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

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

Please help no one else can and I am confused

Reptile [31]

just multiply 45 time 31!

3 0

3 years ago

Trina brings 6 cubic yards of compost for planting the trees. Each tree needs to be planted with 1/6 cubic yards of compost

kumpel [21]

If the question is asking how many trees can be planted with 6 cubic yards of compost, here is the solution.

6 divided by 1/6 means to take 6 wholes and break them into groups the size of 1/6.

One whole can be broken into 6 groups of 1/6 (6/6), so 6 wholes can be broken into 36 groups of 1/6 (6 x 6 = 36/6).

Mathematically, you will multiply 6 by 6/1 to get the 36.

You can plant 36 trees with 6 cubic yards of compost.

8 0

4 years ago