All categories

3 years ago

Please I need help I been stuck on this problem for 40 minutes

Mathematics

2 answers:

lara [203]3 years ago

8 0

Answer:

29 miles each day

Step-by-step explanation:

This is pretty simple actually, so first you:

take away 108 from 224 because they already did 108

224-108=116

then you just divide 4 from 116 because they went 116 miles in 4 days.

so 116/4=29 then you get your answer 29 miles each day.

nignag [31]3 years ago

5 0

First
224-108=116miles left
And 4 days left
116/4
=29 miles each day

You might be interested in

Students have organized

Olenka [21]

Answer:

Part A. At least 6 hours

Part B. In less than 2.5 hours Elijah will be behind Mercedes

Part C. In more than 2.5 hours Elijah will be ahead Aubrey

Step-by-step explanation:

D = distance

v =speed

t = time

Formula connecting D, v and t:

$D=v\cdot t$

Part A.

Steve's speed: $v=3.5\ mph$

Distance: at least 21 miles

Time: unknown, so

$3.5\cdot t\ge 21\\ \\35t\ge 210\ [\text{Multiplied by 10}]\\ \\t\ge \dfrac{210}{35}\\ \\t\ge \dfrac{30}{5}\\ \\t\ge 6$

It would take Steve at least 6 hours to walk at least 21 mi on Day 1.

Part B.

Mercedes's speed: $v_M=2.4\ mph$

Elijan's speed: $v_E=3.2\ mph$

Elijan's Distance walked: $D_E$ miles

Mercedes's Distance walked: $D_M$ miles

Time: x hours

Mercedes is 2 miles ahead, so

$D_E=3.2x\\ \\D_M=2.4x+2$

Elijan will be behind when

$D_E$

In 2.5 hours Elijan will catch up Mercedes, and in less than 2.5 hours Elijah will be behind Mercedes.

Part C.

Aubrey's speed: $v_M=3\ mph$

Elijan's speed: $v_E=3.2\ mph$

Elijan's Distance walked: $D_E$ miles

Aubrey's Distance walked: $D_A$ miles

Time: x hours

At the beginning of Day 3, Elijah starts walking at the marker for Mile 42, and Aubrey starts walking at the marker for Mile 42.5.

$D_E=42+3.2x\\ \\D_A=42.5+3x$

Elijan will be ahead of Aubrey when

$D_E>D_A\\ \\42+3.2x> 42.5+3x\\ \\3.2x-3x>42.5-42\\ \\0.2x>0.5\\ \\2x>5\ [\text{Multiplied by 10}]\\ \\x>\dfrac{5}{2}\\ \\x>2.5\ hours$

In 2.5 hours Elijan will catch up Aubrey, and in more than 2.5 hours Elijah will be ahead Aubrey.

4 0

3 years ago

Hey can someone who is good at math tutor me on approximating square roots, you can put your SS or IG and I’ll send the meet cod

Volgvan

It’s not letting me type what i’m trying to say

7 0

2 years ago

Read 2 more answers

PLZ HELP ME WILL GIVE BRAINLIEST

nadezda [96]

Answer:

1. $2 \times 10^{- 4} = 2 \div 10^{4}$

2. $(- 10)^{2} = 100$ and $- 10^{2} = - 100$

3. $(a.b.c. ........)^{n} = a^{n}.b^{n}.c^{n}. ..........$

Example: $(30)^{4} = (2 \times 3 \times 5)^{4} = 2^{4} \times 3^{4} \times 5^{4}$

Step-by-step explanation:

1. We have $2 \times 10^{- 4}$ , and we have to prove that this term is equivalent to $2 \div 10^{4}$ .

Now, $2 \times 10^{- 4}$

= $2 \times \frac{1}{10^{4} }$

{Since we know the property of exponent as $a^{- b} = \frac{1}{a^{b} }$ }

= $\frac{2}{10^{4} }$

= $2 \div 10^{4}$

2. $(- 10)^{2} = (- 10) \times (- 10) = 100$ and

$- 10^{2} = - [(10) \times (10)] = - 100$

3. The power of products property gives

$(a.b.c. ........)^{n} = a^{n}.b^{n}.c^{n}. ..........$ ........ (1)

For example, we can write, $(30)^{4} = (2 \times 3 \times 5)^{4} = 2^{4} \times 3^{4} \times 5^{4} = 810000$

3 0

2 years ago

Hi can anybody tell me the answer

AlexFokin [52]

Answer:

3(x-1)

Step-by-step explanation:

you need to out the x minus 1 in brackets as you multiply the whole thing by 3

3 0

2 years ago

Read 2 more answers

Grace deposits $500 into an account that earns 2.5 interest each year After the first year Grace has $512.50 in the account Afte

solong [7]

Hey there!

The account earns 2.5% interest.

To figure out if it earns simple or compound interest, we need to figure out if the interest earned each year, simple, is the same amount or if it's increasing each year, compound.

512.50 - 500 = 12.50

525.31 - 512.50 = 12.81

538.44 - 525.31 = 13.13

Simple interest is based on the principal amount, so the amount earned each time is the same. But in compound interest, the interest previously earned is added before calculating the next period's interest, so the amount of interest earned each period is different.

So, this is a compound interest.

Hope this helps!

5 0

2 years ago