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3 years ago

GEOMETRY HELLP :)))))))))))))))))))))))))))))))))))))))))))))))

Mathematics

1 answer:

Ulleksa [173]3 years ago

7 0

Answer:

Step-by-step explanation:

angle S+angle T+angle+angle R=180 degree(being sum of interior angle of a triangle)

4x^2-6x+40+18x+3+2x^2-7=180

6x^2+12x+36=180

6(x^2+2x+6)=180

x^2+2x+6=180/6

x^2+2x+6=30

x^2+2x=24

x(x+2)=24

x+2=24/x

x=24/x-2

x=24-2x/x

substitute the value of x^2 in angle R

2x^2-7

2(24-2x/x)^2-7(here x and x gets cancel)

2(24-2)^2-7

2*22^2-7

2*484-7

968-7

961

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Ms Singh wants to buy a new television that costs £840

amm1812

Cost of a television Ms. Singh wants to buy = £840

Ms. Singh's weekly wage = £300

Money she saves each week :

= 40% of her weekly wage

$=\tt 40\% \: of \: 300$

$= \tt \frac{40}{100} \times 300$

$=\tt \frac{40 \times 300}{100}$

$=\tt \frac{12000}{100}$

$\color{plum} = \tt£120$

Thus, Ms. Singh's weekly savings = £120

Number of weeks in which she will be able to buy a TV :

$= \tt \frac{840}{120}$

$\color{plum} =\tt 7 \: weeks$

Therefore, Ms. Singh will be able to buy a TV from her savings in 7 weeks.

7 0

3 years ago

You have$200in a savings account and $100 in a checking account. Each week you add $50 to your saving account and $30 to your ch

enyata [817]

Answer:

The expression is (80w+300)

Step-by-step explanation:

Let

y ----> the total amount of money in both accounts

s ----> the amount of money in saving account

c ----> the amount of money in checking account

w ----> the number of weeks

we know that

saving account

s=50w+200 -----> equation A

checking account

c=30w+100 ----> equation B

To find out the total amount of money in both accounts, sum equation A and equation B

y=s+c

substitute

y=(50w+200)+(30w+100)

y=(50w+30w)+(200+100)

y=80w+300

therefore

The expression is (80w+300)

5 0

3 years ago

Explain this to me plz

Andrew [12]

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6 0

4 years ago

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Write a linear equation that passes through the point (2,-9) and has a slope of -5

Anna [14]

Answer:

y = -5x + 1

Step-by-step explanation:

Given:

The slope m = -5 and point (2, -9)

Use point slope form:

y - y₁ = m(x - x₁), where (x₁, y₁) is the given point

So the equation is:

y - (-9) = -5(x - 2)
y + 9 = -5x + 10
y = -5x + 1

3 0

3 years ago

monica has 24 packs of fruit snacks.she wants to put 3 packs in each bowl.write a multiplication sentence that monica can use to

dolphi86 [110]

3x = 24, where x = the number of bowls she needs

8 0

4 years ago

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