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I am Lyosha [343]
3 years ago
10

Write an equivalent expression for 5a+30

Mathematics
2 answers:
kirza4 [7]3 years ago
8 0
Write it in factorized form.
Find the GCF
Which is 5
Place that outside the parenthesis
And you get an answer of:

5(a + 6)
Elena-2011 [213]3 years ago
7 0
We can express it at 5 (a+6)
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Javier drove 45 miles. This represents 60% of his entire trip. What is the total number of miles in Javier's trip?
trapecia [35]
60% of trip = 45 miles

let total trip distance = <u />l

60% is given by multiplying by 0.6

So;

0.6l = 45 \\  \\  l = \frac{45}{0.6}  \\  \\ \boxed{l = 75}


5 0
3 years ago
Read 2 more answers
Select all statements that are true about the linear equation. y=1/4x-5
velikii [3]

Answer:

(a) and (b) are true

Step-by-step explanation:

a) is true.

b) is true.  Replacing x with 8 in the equation y=1/4x-5 results in 2-5, or -3.

c) is false.  See (a), above.

d) is false.  Replacing x in the equation by 12 results in y = (1/4)(12) - 5, or -2.

5 0
4 years ago
Professer Dumbledore bought a new sorting hat. The total cost was $59.92,including the 7% he paid in tax. What was the subtotal?
svetlana [45]

Answer:

$55.73

Step-by-step explanation:

First you would multiply $59.92 and 0.07 together and get 4.1944. Round this and get 4.19. Then you would subtract this from the total price to get 55.73.

3 0
3 years ago
Which of the polynomial equations cannot be solved using the quadratic formula?
xxMikexx [17]

Answer:

The polynomial equation that cannot be solved using the quadratic formula: Option2: x^2-2x^3-5=0

Step-by-step explanation:

First of all we have to learn what a quadratic polynomial is.

A polynomial or equation of degree 2 is called a quadratic equation. Quadratic formula is used to solve quadratic equations.

The quadratic equation is of the form:

ax^2+bx+c = 0

From the given options, only option 2 doesn't have degree 2 so it is not a quadratic polynomial.

Hence,

The polynomial equation that cannot be solved using the quadratic formula: Option2: x^2-2x^3-5=0

8 0
3 years ago
Russell, Sarah, and Terry share money in the ratio 2:5:8. In total they have £120. Work out how much each gets.
Sholpan [36]

Answer:

£16, £40, £64

Step-by-step explanation:

sum the parts of the ratio, 2 + 5 + 8 = 15 parts

Divide the amount by 15 to find the value of one part of the ratio.

£120 ÷ 15 = £8 ← value of i part of ratio , then

2 parts = 2 × £8 = £16 ← amount Russell gets

5 parts = 5 × £8 = £40 ← amount Sarah gets

8 parts = 8 × £8 = £64 ← amount Terry gets

5 0
3 years ago
Read 2 more answers
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