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Cerrena [4.2K]
3 years ago
8

When solving −2a≥10, you must flip the inequality sign to solve for a. true or false

Mathematics
2 answers:
exis [7]3 years ago
6 0

Answer:

it is true because you would divide by a negative

trapecia [35]3 years ago
4 0
True because it just is my teacher just went over this in class
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Cheri paid $6.50 for the bunch of grapes with the weight of 2.5 pounds. What is the price per pound?
kotegsom [21]
It would be $2.6 (or $2.60) per pound.
3 0
3 years ago
If the discriminant of a quadratic equation is 4 which statement describes the roots.
Alisiya [41]

Answer:

2 real roots

Step-by-step explanation:

If the discriminant is >0 then the equation has 2 real roots

If the discriminant is =0 then the equation has 1 real roots

If the discriminant is <0 then the equation has 2 complex roots

since the discriminant is 4, it has 2 real roots

6 0
3 years ago
In 3 1/8 hours Aldo reads 7 1/2 chapters. What is the unit rate in chapters per hour ?
geniusboy [140]
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8 0
3 years ago
There are 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 bacteria cells after 3 hours. Write the repeated multiplication as a power and then
sukhopar [10]

Answer:

2 over the power of 3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find a &amp; b if the point p(6,4)&amp;q(2,3) lie on the graph of ax+by=20
Cerrena [4.2K]

Answer:

a = - 2 , b = 8

Step-by-step explanation:

Since the points p and q lie on the graph then they satisfy the equation

(6, 4 ) , substitute x = 6 , y = 4 into the equation

6a + 4b = 20 → (1)

(2, 3 ) , substitute x = 2, y = 3 into the equation

2a + 3b = 20 → (2)

Multiplying (2) by - 3 and adding to (1) will eliminate a

- 6a - 9b = - 60 → (3)

add (1) and (3) term by term to eliminate a

0 - 5b = - 40

- 5b = - 40 ( divide both sides by - 5 )

b = 8

Substitute b = 8 into either of the 2 equations and solve for a

Substituting into (1)

6a + 4(8) = 20

6a + 32 = 20 ( subtract 32 from both sides )

6a = - 12 ( divide both sides by 6 )

a = - 2

4 0
2 years ago
Read 2 more answers
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