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3 years ago

I need help with this

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Answer:

use calculator

Step-by-step explanation:

USE THAT CALCULATOR THANKS

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Write a system of equation.

Alecsey [184]

Luis spent $9.50, in which:

Candy (y) = $1.25

Chips (x) = $0.50

$9.50 = 1.25y + 0.50x

Luis bought 10 snacks in all

10 = x + y

-----------------------------------------------------------------------------------------------------------------

You're answer:

x + y = 10

1.25y + 0.50x = 9.50

-------------------------------------------------------------------------------------------------------------------

hope this helps

7 0

3 years ago

Whiskers the cat weighs 2 and 2 over 3 kg.piglio weighs 4 kg. How many times as heavy as piglio is whiskers

ruslelena [56]

Answer:

Whiskers is two-third times as heavy as piglio is.

Step-by-step explanation:

Given:

Weight of whiskers is, $W=2\frac{2}{3}\ kg$

Weight of piglio is, $P=4\ kg$

In order to compare their weights, we have to divide both the weights and then express one weight in terms of the other.

Therefore, dividing whiskers weight by piglio's weight, we get:

$\frac{W}{P}=2\frac{2}{3}\div 4\\\frac{W}{P}=\frac{8}{3}\div \frac{4}{1}(\textrm{4 can be rewritten as 4/1 in fraction form})$

Now, when we divide two fractions, we replace the division sign by multiplication and reverse the second fraction. This gives,

$\frac{W}{P}=\frac{8}{3}\times \frac{1}{4}\\\frac{W}{P}=\frac{8\times 1}{3\times 4}\\\frac{W}{P}=\frac{2}{3}$

Now, expressing 'W' in terms of 'P', we multiply both sides by 'P. This gives,

$W=\frac{2}{3}P$

Therefore, the weight of whiskers is two-third times as heavy as piglio is.

4 0

3 years ago

Ln a+3 + ln a-3 = ln 16

Lilit [14]

$\bf log_{{ a}}(xy)\implies log_{{ a}}(x)+log_{{ a}}(y)\\\\
and\qquad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
ln(a+3)+ln(a-3)=ln(16)\implies ln[(a+3)(a-3)]=ln(16)
\\\\\\
ln[a^2-3^2]=ln(16)\impliedby \textit{removing ln() from both sides}
\\\\\\
a^2-9=16\implies a^2=16+9\implies a^2=25
\\\\\\
a=\pm\sqrt{25}\implies a=\pm 5$

7 0

3 years ago

Andre has $30, and Erin has $14. Andre is saving $5 per day, and Erin is saving $9 per day. After how many days will Andre and E

artcher [175]

In 4 days, because 5 x 4 = $20
30 + 20 = $50

9 x 4 = $36
36 + 14 = $50

4 was multiplied then added in order to find out Erins, and Andres.

5 0

4 years ago

Read 2 more answers

Wich distance .easure 7 units

Charra [1.4K]

Normally feet, I don't really understand your question

8 0

4 years ago