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2 years ago

Please help me. i don’t understand this at all

Mathematics

1 answer:

shtirl [24]2 years ago

8 0

I not see the question

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John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

Hence total amount of money John originally had was $1210

8 0

2 years ago

Write an equation from for the amount of money that will be collected if boxes of chocolate bars are sold. Which is the independ

Georgia [21]

The equation would be:
m = 30b where 'm' represents the amount of money and 'b' represents the number of boxes sold.

m is the dependent variable
b is the independent variable

4 0

2 years ago

X + 6 >10 or 3x + 11 ≤ −7

hjlf

Answer:

x>4 or x≤-6

Step-by-step explanation:

x+6>10 or 3x+11≤-7

x>4 or 3x≤-18

x>4 or x≤-6

5 0

2 years ago

Let g(x) = 2x and h(x) = x2 + 4. Evaluate (h ∘ g)(1). 2 8 10 4

Klio2033 [76]

Hello!

You can solve this by plugging 1 into $g(x)$ and plugging the result into $h(x)$ .

$g(x) = 2x$
$g(1) = 2(1)$
$g(1) = 2$

$h(x) = 2x + 4$
$h(g(1)) = 2(2) + 4$
$h(g(1)) = 4 + 4$
$h(g(1)) = 8$

Answer:
<span>(h ∘ g)(1) = 8</span>

8 0

3 years ago

Construct parallel gram ABCD in which AB=8cm,BC=5.3cm and ABC=60

cupoosta [38]

Answer:

first construct the base of 5.3 cm(bc)

make an angle of 60° in B [ use protactor or compass]

then construct the AB of 8 cm

now measure AD 5.3 cm

join D and C

6 0

3 years ago