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2 years ago

The amount of salt, in grams, in a solution is proportional to the volume, in liters, of the solution as shown on the graph.

Mathematics

2 answers:

NARA [144]2 years ago

7 0

2.5 IS THE CORRECT ANSWER I TOOK THE TEST

maw [93]2 years ago

3 0

The correct answer is 2.5. Not too sure how to get that answer but my math test had this question and that was the answer.

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Please solve 5/5 ÷ 1/2 =

Gala2k [10]

5/5 ÷ 1/2 =
5/5 is the same as 1 so 1/2 of 1 = 1/2

5 0

2 years ago

Sara wanted to put a trim on her curtains. She measured the curtains and found that they were 4.5 yards long. How many inches is

Maru [420]

The answer would be 162inches!!!!

5 0

3 years ago

Read 2 more answers

Find the missing lengths: LK=15 and KH=9, find KI and HI.

Luda [366]

Answer:

KI=11.25 and HI=6.75

Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

$base^2+perpendicular^2=hypotenuse^2$

Use Pythagoras in triangle HKL

$LH^2+KH^2=LK^2$

$(LH)^2+9^2=15^2$

$(LH)^2+81=225$

$(LH)^2=144$

Taking square root on both sides.

$LH=12$

Let length of HI be x.

LI = 12+x

Use Pythagoras theorem in ΔKLI,

$(KI)^2+15^2=(12+x)^2$

$(KI)^2+225=x^2+24x+144$

$(KI)^2=x^2+24x+144-225$

$(KI)^2=x^2+24x-81...(1)$

Use Pythagoras theorem in ΔHKI,

$(KI)^2=x^2+9^2$

$(KI)^2=x^2+81...(2)$

From (1) and (2) we get

$x^2+81=x^2+24x-81$

$24x=162$

$x=\dfrac{162}{24}=6.75$

Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

$(KI)^2=(6.75)^2+81$

$(KI)^2=126.5625$

Taking square root on both sides.

$KI=\sqrt{126.5625}$

$KI=11.25$

Hence, the measure of KI is 11.25 units.

3 0

2 years ago

Elapsed time is the sum of the time an event starts and the time it ends. True False

Alex777 [14]

Answer:

True

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

I am struggling with triangles missing angles with the formula if you could explain your answer step by step that would be great

Alborosie

Answer:

See below.

Step-by-step explanation:

The 3 angles of all triangles add up to 180 degrees.

An isosceles triangle has 2 of its angles equal.

So if one of the angles is 130 degrees then there cant be another one of 130 degrees as that would make 260 degrees.

So the other 2 angles are equal and their measure is (180 - 130) / 2

= 50 / 2

= 25 degrees.

The 2 equal angles are both 25 degrees.

3 0

2 years ago