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3 years ago

What is the solution to the inequality? 4x−5>19−8x

Mathematics

1 answer:

Nostrana [21]3 years ago

7 0

Answer:

x>1.16

Step-by-step explanation:

Subtract 5 from each side to get 4x>14-8x

change the symbol from +8 to -8

4x> 14+ (-8x)

than add 8x to both sides

12x > 14

which would mean that x has to be greater than 1.16

x>1.16

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Y varies directly as x. Y=42 when x=6. Find the value of y when x =15.

pentagon [3]

Answer:

y=120

Step-by-step explanation:

Y varies directly as x is written as

$y \alpha x$

introducing a constant

y=kx

from the question, when y=48, x=6

substitute it in the formula

48=6k

making k the subject by dividing through by 6

$\frac{48}{6} = \frac{6k}{6}$

k=48/6

k=8

put the value of k in the expression y=kx

y=8x

from the question,the value of y when x=15 is given by

y=8×15

y=120.

4 0

3 years ago

What's the Area of 14ft, 7ft, and 10ft

statuscvo [17]

Answer: im not shore how to answer but here is to answers: 980 ft when multiplied and 31ft when added

Step-by-step explanation:

plz mark brainlyest

5 0

3 years ago

Find the value of x. A. 10 B. 12 C. 27 D. 43.5

PIT_PIT [208]

Answer:

C. 27

Step-by-step explanation:

well we can use the pythagorean theorem for this and disregard the 11. so we have the hypotenuse and one side so therefore a^2+b^2=c^2 and if we plug in the numbers it would look like this

16.5^2+x^2=29^2

272.25+x^2=841

x^2=568.75

and from multiple choice we can infer that the answer is obviously bigger than 16.5 because in the picture x is a longer side but it is smaller than 29 and the only answer in between those two numbers given would be C. 27

4 0

3 years ago

(1 point) The length of an insect (L, in mm) is a function of the temperature during development (T , measured in ∘C according t

lawyer [7]

Answer:

$M(T)=1.1(7(8+T^{10})^{3})$ and $M(T)=1.1(7(8+22^{10})^{3})=1.44\time10^{41}$

Step-by-step explanation:

We have the next set of functions:

$L(T)=8+T^{10}$

$V(L)=7L^{3}$

$M(V)=1.1V$

We want to know M(T) then:

$M(V)=1.1V$ but we know that $V(L)=7L^{3}$ :

$M(L)=1.1(7L^{3})$ and we know that $L(T)=8+T^{10}$

$M(T)=1.1(7(8+T^{10})^{3})$

Finally using the value of 22º we have

$M(T)=1.1(7(8+22^{10})^{3})=1.44\time10^{41}$

3 0

3 years ago

Explain when you should reverse the inequality symbol when solving an equality.

rosijanka [135]

You must “reverse” the inequality sign to make the statement true: When you multiply by a negative number, “reverse” the inequality sign. Whenever you multiply or divide both sides of an inequality by a negative number, the inequality sign must be reversed in order to keep a true statement.

3 0

3 years ago