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Mama L [17]
3 years ago
7

Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the $48 among the j of them. A

ngela also paid a$5 tip.
How much did Angela pay in total?
Write your answer as an expression.
Mathematics
1 answer:
saw5 [17]3 years ago
8 0
What were your given answer choices
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djverab [1.8K]

Answer:

(2.25 , 0.75)

Step-by-step explanation:

solution is where the graphs intersect each other

3/4 = - x + 3

-x = 3/4 -3 = -2 1/4

x =2 1/4

4 0
3 years ago
Harmonic mean if a number h such that (h-a)/(b-h)=a/b Prove h is H(a,b) iff satisfies either relation a. (1/a)-(1/h) = (1/h) - (
Fudgin [204]
A.

\displaystyle\frac1a-\frac1h=\frac1h-\frac1b
\implies\displaystyle\frac{h-a}{ah}=\frac{b-h}{bh}
\implies\displaystyle\frac{h-a}{b-h}=\frac{ah}{bh}
\implies\displaystyle\frac{h-a}{b-h}=\frac ab

b.

\displaystyle h=\frac{2ab}{a+b}
\displaystyle\implies\frac{h-a}{b-h}=\frac{\frac{2ab}{a+b}-a}{b-\frac{2ab}{a+b}}
\displaystyle\implies\frac{h-a}{b-h}=\frac{2ab-a(a+b)}{b(a+b)-2ab}
\displaystyle\implies\frac{h-a}{b-h}=\frac{ab-a^2}{b^2-ab}
\displaystyle\implies\frac{h-a}{b-h}=\frac{a(b-a)}{b(b-a)}
\displaystyle\implies\frac{h-a}{b-h}=\frac ab

The other direction can be proved by following the manipulations in the reverse order.
7 0
3 years ago
Find the volume of the triangular prism 3cm 4 cm 5cm 11cm
Karo-lina-s [1.5K]

we need to know the height the length and the width

7 0
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Step-by-step explanation:

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3 years ago
Which equation can be solved using using the expression below for x?
lina2011 [118]

Answer:

0 = 10x^2 + 3x + 2


Step-by-step explanation:

That is the quadratic formula:

x = -b +- sqrt( b^2 - 4ac) / 2a

It is used for an equation in the form 0 = ax^2 + bx + c

so just plug a, b, and c, from the quadratic formula into that equation

8 0
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