All categories

2 years ago

Use the cross product property to solve each equation: 5/7 = x/9

Mathematics

1 answer:

enot [183]2 years ago

8 0

Answer:

x = 45/7

Step-by-step explanation:

$\frac{5}{7} =\frac{x}{9}$

Here, you can more easily see what the fractions look like.

In order to cross-multiply, you have to multiply 5 with 9, and 7 with x.

45 = 7x

Then, you isolate x by dividing 7 on both sides:

45/7 = x

Hope I helped :)

You might be interested in

Evaluate (-48)+(-110)+27

Tpy6a [65]

Answer:

131

Step-by-step explanation:

(-48)+(-110)+27

Remember one of the most important math rules

- * - = +

-*+= -

+*+ =+

+*-=-

That been said

We can now perform the operation

-48-110+27= -131

5 0

2 years ago

Ellie has 5/8 of a cup of powdered sugar. She sprinkles 3/10 of the sugar onto a plate of

Klio2033 [76]

Answer:

She sprinkles 3/10 of a cup of powdered sugar on the brownies.

Step-by-step explanation:

4 0

2 years ago

Everyday Isabel swims 10-20 laps in a 50 meter pool. The amount of time she spends swimming is represented by the function f(x)

Inessa [10]

Given :

Everyday Isabel swims 10-20 laps in a 50 meter pool.

The amount of time she spends swimming is represented by the function f(x) = 3x .

To Find :

The speed of Isabel.

Solution :

Distance travelled in x laps is, D = 50x .

It is given that time taken is, t = 3x .

So, speed of Isabel is given as :

$Speed=\dfrac{Distance}{Time}\\\\Speed = \dfrac{50x}{3x}\\\\Speed = \dfrac{50}{3}=16.67 \ m/s$

Hence, this is the required solution.

6 0

2 years ago

In the seahorse tank at an aquarium, 70% of the male seahorses

lara [203]

Part A: Kennedy's expression is incorrect because 0.07 is 7 percent, not 70.

Part B: The correct expression would be 0.7 * 20, which equals 14

3 0

1 year ago

You are three spaces from a win in Parcheesi. On each turn, you will roll two dice. To win, you must roll a total of 3 or roll a

aleksandrvk [35]

I think it will take 2 turns to get at total of 3.

8 0

2 years ago