Answer:
cost of knife = £5.52
Step-by-step explanation:
Assume:
Cost of Knife = a
Cost of Spoon = b
a = 3b ----------------------(1)
12a + 9b = £82.80 -------(2)
Substitute equation (1) in equation (2)
12 * (3b) + 9b = £82.80
36b + 9b = £82.80
45b = £82.80
b = £1.84
Therefore, cost of knife = a = 3 * £1.84 = £5.52
Let's simplify step-by-step.<span><span><span><span><span><span><span><span>−<span>x3</span></span>+<span>262</span></span>−<span>7x</span></span>−13</span>+<span>6<span>x4</span></span></span>−<span>x3</span></span>+<span>8x</span></span>+27</span><span>=<span><span><span><span><span><span><span><span><span><span><span>−<span>x3</span></span>+676</span>+</span>−<span>7x</span></span>+</span>−13</span>+<span>6<span>x4</span></span></span>+</span>−<span>x3</span></span>+<span>8x</span></span>+27
</span></span>Combine Like Terms:<span>=<span><span><span><span><span><span><span><span>−<span>x3</span></span>+676</span>+<span>−<span>7x</span></span></span>+<span>−13</span></span>+<span>6<span>x4</span></span></span>+<span>−<span>x3</span></span></span>+<span>8x</span></span>+27</span></span><span>=<span><span><span><span>(<span>6<span>x4</span></span>)</span>+<span>(<span><span>−<span>x3</span></span>+<span>−<span>x3</span></span></span>)</span></span>+<span>(<span><span>−<span>7x</span></span>+<span>8x</span></span>)</span></span>+<span>(<span><span>676+<span>−13</span></span>+27</span>)</span></span></span><span>=<span><span><span><span>6<span>x4</span></span>+<span>−<span>2<span>x3</span></span></span></span>+x</span>+690
</span></span>Answer:<span>=<span><span><span><span>6<span>x4</span></span>−<span>2<span>x3</span></span></span>+x</span>+<span>690
hope i helped</span></span></span>
Answer:
x= -21
Step-by-step explanation:
Two-fifths or
is equivalent to the following.
<span>
0.4</span>
40%2 pizzas being shared among 5 friends is a real-world example i<span>
n which each form might be used.I hope this helps!</span>
Answer:
4
Step-by-step explanation:
First, you would have to prime factorize both of the numbers. The prime factorization of 24 is 24 = 2*2*3*3, and the prime factorization of 32 is 32 = 2*2*2*2*2 or 2^5. After that, you would find what is most common:
24 = 2*2*3*3
32 = 2*2*2*2*2
What is common is that there is two 2's in each equation. 2*2 is 4, so the answer is 4.
Hope this helps! <3