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3 years ago

9

Plz help!! ty!!! :))

1 answer:

ser-zykov [4K]3 years ago

6 0

Answer:

19/18

Step-by-step explanation:

ii put it inna calculator

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ON TUESDAY NORACHI BOUGHT SIX HATS ON WENDSDAY HALF OF ALL HER HATS THAT HE HAD WERE DESTROYED ON THURSDAY THERE WERE ONLY 23 LE

son4ous [18]

X - the number of hats on Monday

$x+6-\dfrac{x+6}{2}=23\\
2x+12-(x+6)=46\\
2x+12-x-6=46\\
x=40$

So, he had 40 on Monday.

6 0

3 years ago

How and answer .....................................

Whitepunk [10]

You multiply both equations by a factor to get them to have the same X coefficient, the first by 5 and the second by 2, you get 10x-15y=5 and 10x+8y=28. Then you subtract the equations to get 23y=23, y=1, plug y into first equaition, x=2. Answer is (2,1)

3 0

3 years ago

What is the value of a2+c•(2+b)<br><br> when a =3 , b=6 and c=5

DerKrebs [107]

Answer:

46 is the answer

Step-by-step explanation:

Because:

a2 + c(2+b)

3(2) + 5(2+6)

6 + 5(8)

6 + 40

46

7 0

3 years ago

Read 2 more answers

Solve step by step solution then only i can do it plxx

Anuta_ua [19.1K]

Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here angle B is 90°

So $\triangle ABC$ and $\triangle ABD$ Are right angled triangle

So we use Pythagoras thereon for solution

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

First in triangle ABC

perpendicular=p=8cm

Hypontenuse =h =10cm

We need to find base=b

According to Pythagoras thereon

${\boxed{\sf b^2=h^2-p^2}}$

Substitutethe values

$\longrightarrow$ $\sf b^2=10^2-p^2$

$\longrightarrow$ $\sf b={\sqrt {10^2-8^2}}$

$\longrightarrow$ $\sf b={\sqrt{100-64}}$

$\longrightarrow$ $\bf b={\sqrt {36}}$

$\longrightarrow$ $\sf b=6$

$\therefore$ $\overline{BC}=6cm$

BD=BC+CD

$\longrightarrow$ $BD=9+6$

$\longrightarrow$ $BD=15cm$

Now in $\triangle ABD$

Perpendicular=p=8cm

Base =b=15cm

We need to find Hypontenuse =AD(x)

According to Pythagoras thereon

${\boxed {\sf h^2=p^2+b^2}}$

Substitute the values

$\longrightarrow$ $\sf h^2=8^2+15^2$

$\longrightarrow$ $\sf h={\sqrt {8^2+15^2}}$

$\longrightarrow$ $\sf h={\sqrt {64+225}}$

$\longrightarrow$ $\sf h={\sqrt {289}}$

$\longrightarrow$ $\sf h=17cm$

$\therefore$ ${\underline{\boxed{\bf x=17cm}}}$

3 0

3 years ago

Naomi used 2/3 gallon of gas to drive 15^1/5 miles.At this rate how many miles can naomi car travel per gallon

Rama09 [41]

Answer:

22 4/5 miles

Step-by-step explanation:

miles per gallon = total miles / total gallons used

$15\frac{1}{5}$ ÷ $\frac{2}{3}$

convert the mixed fraction to an improper fraction

$\frac{76}{5}$ × $\frac{3}{2}$ = $\frac{114}{5}$ = 22 4/5 miles

5 0

3 years ago