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GREYUIT [131]
1 year ago
13

Four rulers and three pencils cost £2.15 Three rulers and four pencils cost £2.05 Work out the cost of a ruler and the cost of a

pencil.
Mathematics
1 answer:
cupoosta [38]1 year ago
4 0

Answer:

The cost if a ruler is £0.35 while the cost of a pencil is £0.25

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My cupcake recipe makes $12$ cupcakes and requires $1\frac12$ sticks of butter. I can only buy whole sticks of butter. How many
andre [41]

Answer:

Given that,

My cupcake recipe makes $12$ cupcakes and requires $1\frac12$ sticks of butter. I can only buy whole sticks of butter.

Therefore, 1 whole sticks of butter is enough to make $100$ cupcakes.




8 0
1 year ago
Read 2 more answers
What is the value of b and the missing symbol in Jamilla’s inequality?
Sindrei [870]

Answer:

b=1, \geq

Step-by-step explanation:

we know that

The absolute value function has two solutions

Observing the graph

the solutions are

x\geq 1 and x\leq -3

First solution (case positive)

assume the symbol of the first solution and then compare the results

\left|x+b\right|\ge2

(x+b)\ge2

x\ge2-b

2-b=1\\b=2-1\\ b=1

Second solution (case negative)

-(x+b)\ge2

Multiply by -1 both sides

(x+b)\leq-2

substitute the value of b and compare the results

(x+1)\leq-2

x\leq-2-1

x\leq-3 -------> is correct

4 0
2 years ago
Read 2 more answers
Two triangles are similar with a scale factor of 3. The preimage triangle has a base of 7 inches and a height of 10 inches. What
vaieri [72.5K]

Answer:

<u>The area of the larger triangle is 315 inches²</u>

Step-by-step explanation:

1. Let's review all the information provided for answering the questions properly:

Pre-image triangle has a base of 7 inches and a height of 10 inches

Scale used : Factor of 3

2. What is the area of the larger triangle??

For calculating the area of the larger triangle, we use the scale this way:

Base = 7 inches * 3

21 inches

Height = 10 inches * 3

30 inches

Area of the larger triangle = 1/2 (Base * Height)

Area of the larger triangle = 1/2 (21 * 30)

<u>Area of the larger triangle = 630/2 = 315 inches²</u>

6 0
1 year ago
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y = 3, x = 4
Ad libitum [116K]
The intersection between the curves are
3, 0
0, 3
The volume of the solids is obtained by
V = ∫ π [ (4 - (y-1)²)² - (3 - y)²] dy with limits from 0 to 3
The volume is
V = 108π/5 or 67.86
4 0
1 year ago
A collector’s item is purchased for $150 and its value increases by 3% each year. Which graph can be used to determine approxima
Tju [1.3M]
The answer is b.

A is in the negatives, and there are no negative years.

B works ; it starts at 150, is positive, and slowly reaches 300

C is exponential and goes to fast.

D starts at 0 not 150

So the answer is b.

Hope this helps!
8 0
2 years ago
Read 2 more answers
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