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3 years ago

7

Write the following expression in standard place-value form.

1 answer:

erastova [34]3 years ago

4 0

Answer:

3408

Step-by-step explanation:

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Two cooks purchased plates and cups at the same store. The first cook bought 4 plates and 5 cups for a total of $25.25. The seco

Thepotemich [5.8K]

X=number of plates
y=number of cups

4x+5y=25.25

7x+3y=25.50

Add the two equations together:

11x+8y=50.75
11x=50.75-8y

x= $\frac{50.75-8y}{11}$

Plug x into the first equation:
4x+5y=25.25

4( $\frac{50.75-8y}{11}$ ) = 25.25

$\frac{4(50.75-8y)}{11}$ = 25.25

$\frac{203-32y}{11}$ = 25.25

203-32y = 277.75

-32y=74.75
32y=-74.45
y=2.34 (rounded to nearest hundredth)

The price of a plate is $2.34

5 0

3 years ago

Every set of three points must be coplanar? True or False

Lubov Fominskaja [6]

True my gurl also memes are cool

6 0

4 years ago

Read 2 more answers

Josh invests £500 in a savings bond.

goldenfox [79]

Answer:

550 pounds

Step-by-step explanation:

If this answer helped you then please consider making this brainliest and thank this response :)

3 0

3 years ago

Joe’s age is three times Aaron’s age and Aaron is six years older than Christina. If the sum of their ages is 149, what is Chris

Leno4ka [110]

<u>Answer</u>

If Christina's age is = x

Aaron's age is = x + 6

Jeo's age = 3(x + 6 )

So, the sum of their ages can be write as,

$x + x + 6 + 3(x + 6) \\ x + x + 6 + 3x + 18 \\ 5x + 24$

Also, they have given that the sum of their ages is 149

Therefore we can write a equation as,

$5x + 24 = 149$

Now let's solve this and find the age of Christina

$5x + 24 = 149 \\ 5x = 149 - 24 \\ 5x =12 5 \\ \frac{5x}{5} = \frac{125}{5} \\ x = 25$

Aaron's age is

$x+ 6 \\ 25 + 6 \\ = 31$

Joe's age is

$3(x + 6) \\ 3(25 + 6) \\ 3 \times 31 \\ = 93$

Hope this helps you.

Let me know if you have any other questions :-):-)

8 0

3 years ago

A counter top is 18 feet long and 3 feet wide. What is the area of the counter top in square meters? Use the conversion 1 foot =

podryga [215]

Answer:

Area of the counter top is $5.02\ m^2$ .

Step-by-step explanation:

Given:

Length of the Counter top = 18 feet

Width of the counter top = 3 feet

We need to find the area of the counter top is square meter;

Solution:

Now we need to find the area of the counter top is square meter.

But given data is in feet so we will first convert feet into meters.

1 foot = 0.305 meter.

So 18 feet = Number of meters in 18 feet.

By Using Unitary method we get;

Number of meters in 18 feet = $18\times 0.305 = 5.49\ m$

Length of the Counter top = 5.49 m

Also 3 feet = Number of meters in 3 feet.

Again Using Unitary method we get;

Number of meters in 3 feet = $3\times 0.305 = 0.915\ m$

Width of the counter top = 0.915 m

Now we know that;

Area of the counter top can be calculated by multiplying Length of the counter top with width of the counter top.

framing in equation form we get;

Area of the counter top = $5.49\times 0.915 = 5.0233\ m^2$

Rounding up to 2 decimals we get;

Area of the counter top = $5.02\ m^2$

Hence Area of the counter top is $5.02\ m^2$ .

3 0

4 years ago