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3 years ago

Help with question 5 please

Mathematics

1 answer:

In-s [12.5K]3 years ago

7 0

I'm gonna say C for this one

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Jewel is 7 years old and John is 16 years younger than Dave. One year ago, Dvae's age was twice the sum of Jewel's and John's ag

ivanzaharov [21]

Answer:

Jewel is 7 years old

John is 1 year old

Dave is 17 years old

Step-by-step explanation:

From the question we are told that:

Jewel age is $J=7 years$

John age $J'=(D-16)years$

Dave's age a Year ago

$D-1=2(J-1+J'-1)$

So that Dave.s age this Year could be

$D=2((J-1)+(J'-1))+1$

Simplifying Equation for Dave's age we have

$D=2((7)-1+(D-16)-1)+1$

$D=2(6+D-15)+1$

$D=2(D-9)+1$

$D=2D-18+1$

$D=17 Years$

Dave is 17 years old

Therefore

Johns age is

$J'=(D-16)$

$J'=17-16$

$J'=1year old$

John is 1 year old

7 0

3 years ago

Your weekly allowance is $25.you spent 6% of the budget on a new video game . how much did you spend on the video game ?\

QveST [7]

----------------------------------------------------------
Allowance
----------------------------------------------------------
$25

----------------------------------------------------------
Video Game
----------------------------------------------------------
6% 0f 25
= 0.06 x 25
= $1.50

----------------------------------------------------------
Answer: $1.50 were spent on video game
----------------------------------------------------------

7 0

3 years ago

Two angles are said to be congruent if

dem82 [27]

Congruent means Same Side, Same Shape.
If two angles are congruent, they are to be of the same size and same shape or a fraction of it (Dilation)

6 0

3 years ago

Read 2 more answers

Is 7/10 more than 1/2

Bingel [31]

7/10 is bigger because it is more than half

5 0