All categories

3 years ago

Five cakes cost £3.50. How much do seven cakes cost?

Mathematics

2 answers:

Nata [24]3 years ago

8 0

3.50/5 = .70
.70x7 = 4.90
so 7 cakes cost 4.90 pounds.

ipn [44]3 years ago

3 0

You Multiply and you'll get 4.90

You might be interested in

How long would it take sound waves traveling through air that is 68f to travel 1372 meters.

HACTEHA [7]

Answer:6 seconds

Step-by-step explanation:

8 0

3 years ago

When you subtract two positive integers is result always a positive integer

Olin [163]

Not always, for example 19-32 that would answer to a negative if it was like this : 9-1 then it would be okay message me if u need more help or u dont understand

6 0

3 years ago

Would appreciate any assistance

Tema [17]

Answer:

The answer is 37

Step-by-step explanatio

5 0

3 years ago

Solve for the equation, show all your work. This is an absolute value equation. You need to show both equations and the work for

VMariaS [17]

Answer:

$x=-1$ or $7$

Step-by-step explanation:

We use casework on when $3x-9=12$ and when $3x-9=-12$ .

For the first case, $3x-9=12$ , we add 9 to both sides to get

$3x=21$ .

Dividing both sides by 3 gives

$x=7.$

For the second case, $3x-9=-12$ , we add 9 to both sides to get

$3x=-3$ .

Dividing both sides by 3 gives

$x=-1$ .

Checking both cases, we plug in $x=7$ and $x=-1$ .

For the first case, we have $|3(7)-9|=|21-9|=|12|=12$ , which satisfies the equation.

For the second case, we have $|3(-1)-9|=|-3-9|=|-12|=12$ , which also satisfies the equation.

This gives us two solutions to the equation; $x=7$ and $x=-1$ .

4 0

2 years ago

Find the integral, using techniques from this or the previous chapter.<br> ∫x/25-9x^2 dx.

kipiarov [429]

Answer:

$\frac{x^{2} }{50} - 3x^{3}$ +C

Step-by-step explanation:

we are to find the integral of $\frac{x}{25} -9x^{2}$ dx.

we will integrate by using the principle of integration of a sum or difference of two functions by integrating them separately.

∫x/25-9x^2 dx = $\frac{x^{2} }{2*25}- 9\frac{x^{3} }{3}$ +C

= $\frac{x^{2} }{50}- 3x^{3}$ +C

8 0

3 years ago