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3 years ago

I need assist , please show some works !!

Mathematics

1 answer:

vichka [17]3 years ago

8 0

f(x) = x+.50(x)

where x is the amount the math club raises and

.5x is the amount the principal donates

f(x) is the amount of money for the field trip

we can simplify this to

f(x) = 1.5x by combining like terms

using the original equation

f(150) = 150 + .5(150)

f(150) = 150 +75

f(150) =225

using the simplified equation

f(150) = 1.5(150)

f(150) =225

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Three friends go apple picking they pick 13 apples on saturday and 14 apples on sunday they share the apples equallyhow many doe

meriva

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3 years ago

Solve the formula for the perimeter of a rectangle, P = 21 + 2w for l

Phoenix [80]

2(w+l)=21+2w

w+l=10.5+w

So l = 10.5

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3 years ago

Brainliest for correct answer A. 2 B. -2 C. 1/2 D. -1/2

seropon [69]

Answer:

B) -2

Step-by-step explanation:

I got the slope by using two points on the line (0,7) and (4,-1)

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8 0

3 years ago

Read 2 more answers

Anyone help pls!! will mark brainliest

ss7ja [257]

Answer:

2.5 cm is the radius

Step-by-step explanation:

8 0

3 years ago

If y-3x=9, 7x+y=25, what is the value of x and y?

lianna [129]

$\bold{\rm{Given}}\text{ : If y - 3x = 9, 7x + y = 25, what is the value of x and y}?$

$\bold{\rm{Solution}} \text{: We'll solve this by substitution method}$

$\dashrightarrow y - 3x = 9 \\ \\ \dashrightarrow \boxed{y = 9 + 3x } \qquad .. \sf eq(1)$

$\text{we got the value of y now getting the value of x}$

$\looparrowright 7x + y = 25 \\ \\ \looparrowright 7x = 25 - y \\ \\ \looparrowright \boxed{x = \frac{25 - y}{7}} \qquad .. \sf eq(2)$

$\text{Now, putting y = 9 + 3x in eq(2)}$

$\hookrightarrow x = \frac{25 - y}{7} \\ \\ \hookrightarrow x = \frac{25 - 9 + 3x}{7} \\ \\ \hookrightarrow 7x = 25 - 9 + 3x \\ \\ \hookrightarrow 7x - 3x = 16 \\ \\ \hookrightarrow 4x = 16 \\ \\ \hookrightarrow x = \frac{16}{4} \\ \\ \star \quad \boxed{ \green{ \frak{ x = 4}}}$

$\text{Now we know the value of x, for getting y we need to put x in eq(1)}$

$: \implies y = 9 + 3x \\ \\ : \implies y = 9 + 3(4) \\ \\ : \implies y = 9 + 12 \\ \\ \star \quad \boxed{\frak{ \green{y = 21}}}$

$\text{Hence, values of x and y are} \: \frak{ \green{4}} \: \text{and} \: \frak{ \green{21}} \: \text{respectively}.$

4 0

2 years ago