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3 years ago

I need help in this question

Mathematics

1 answer:

scoundrel [369]3 years ago

4 0

Answer:

a) £105 300

b) £132 300

Step-by-step explanation:

a) 2700*39=105 300

b) 2700*49=132 300

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51 decreased by twice Jose's height <br>use the variable j to represent Jose's height.<br>

makkiz [27]

Step-by-step explanation:

51 - 2j

maybe something is missing here, but that is the representation of what you wrote.

3 0

3 years ago

What is the value for x on a triangle if one side is 13 and one side 12

dlinn [17]

The Value of X is 10.
KhanAcademy.org has some great explanation videos on their website and they have a YouTube channel.
Here is an explanation for the answer.

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3 years ago

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Solve the system of equations y = 40x2 and y = 19x + 3 algebraically.

ikadub [295]

We have been given a system of nonlinear equations.

$\\y=40x^{2},y=19x+3$

In order to solve this system we can first equate the two equations in order to get a quadratic in x.

$\\40x^{2}=19x+3$

Our next step is to bring all the terms on one side.

$\\40x^{2}-19x-3=0$

Now we have to solve this equation. We can solve it by factoring using the splitting middle term method.

$\\40x^{2}-24x+5x-3=0$

$\\8x(5x-3)+(5x-3)=0$

$\\(8x+1)(5x-3)=0$

Upon setting each of these factors equal to zero using zero product property we get

$\\8x+1=0 \text{ or } 5x-3 = 0$

Upon solving both these equations we get

$\\x=-\frac{1}{8} \text{ or } x=\frac{3}{5}$

Now we can substitute these values of x in the equation

$y=19x+3$

We get

$\text{For }x=- \frac{1}{8} \Rightarrow y=19(- \frac{1}{8})+3= \frac{5}{8}\\$

$\text{For }x= \frac{3}{5}\Rightarrow y=19( \frac{3}{5})+3= \frac{72}{5}\\$

Therefore, our final set of solutions are

$(x,y)=(- \frac{1}{8},\frac{5}{8}) \text{ and } ( \frac{3}{5}, \frac{72}{5})$

6 0

3 years ago

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Joseph has 150 animals on his farm. ⅕ of the animals are chickens, ⅕ of the animals are cows, and the rest of the animals are go

ASHA 777 [7]

Answer:

90 goats

Step-by-step explanation:

Number of chickens in farm = (1/5) of 150

= $\frac{1}{5}*150$

= 1 * 30

= 30

Number of cows in farm = $\frac{1}{5}*150$

= 1 * 30

= 30

Number of goats in farm = 150 - (30 + 30)

= 150 - 60

= 90

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4 years ago

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A person invests 5000 dollars in a bank. The bank pays 4.25% interest compounded quarterly. To the nearest tenth of a year, how

WITCHER [35]

Answer:

Step-by-step explanation:

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3 years ago

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