2 years ago

Pls I’m in the need of help right now

Mathematics

1 answer:

padilas [110]2 years ago

4 0

25 girls and 50 boys!!

49 divided by 7 = 7.

So there were 7 adults.

49 + the 1 it mentioned = 50 boys

50 divided in half = 25 girls.

50+25+7 = 82.

You might be interested in

0.000028/(4x10^-4) = ?

Jlenok [28]

Answer:

i got 0.07

Step-by-step explanation:

if its wrong im sorry i got that

5 0

2 years ago

Figure 1

hodyreva [135]

Tip: Go to the internet and put the topic you are focused more on that you posted in Brainly

Step-by-step explanation:

Try it to give you some help

4 0

2 years ago

A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns

jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered

Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = $\frac{d}{15-x}$

time downstream = $\frac{d}{15+x}$

the ferry trip upstream takes twice as long as its return trip downstream

$\frac{d}{15-x}$ = $\frac{2d}{15+x}$

divide both sides by d

$\frac{1}{15-x}$ = $\frac{2}{15+x}$

cross multiply

$15+x= 2(15-x)$

$15+x= 30-2x$

Add 2x on both sideds

$15+3x= 30$

subtract 15 from both sides and divide by 3

$3x=15$

x=5

Speed of river's current = 5 mph

8 0

3 years ago

I need to know the surface area of these

Nookie1986 [14]

I can barely see the number , too help you out

4 0

2 years ago

A tank has dimensions of 12m x 8m x 5 meters using an iron sheet. The tank is open at the top. If the sheet is 4m wide, what is

Salsk061 [2.6K]

Answer:Length if tank=12m

Step-by-step explanation:

Dimension of tank is 12m by 8m by 5m

Which is length × breadth × heigh

6 0

2 years ago

Read 2 more answers