All categories

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.

You might be interested in

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

3 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